Communities in Illinois
A
- Abingdon (Abingdon, IL)
- Abington (Abington, IL)
- Adair (Adair, IL)
- Adams (Adams, IL)
- Addieville (Addieville, IL)
- Addison (Addison, IL (DuPage County - Village))
- Addison (Addison, IL (DuPage County - Township))
- Adeline (Adeline, IL)
- Aetna (Aetna, IL)
- Afton (Afton, IL)
- Akron (Akron, IL)
- Alba (Alba, IL)
- Albany (Albany, IL (Whiteside County - Village))
- Albany (Albany, IL (Whiteside County - Township))
- Albers (Albers, IL)
- Albion (Albion, IL)
- Alden (Alden, IL)
- Aledo (Aledo, IL)
- Alexis (Alexis, IL (Mercer County - Village))
- Alexis (Alexis, IL (Warren County - Village))
- Algonquin (Algonquin, IL (Kane County - Village))
- Algonquin (Algonquin, IL (McHenry County - Village))
- Algonquin (Algonquin, IL (McHenry County - Township))
- Alhambra (Alhambra, IL (Madison County - Township))
- Alhambra (Alhambra, IL (Madison County - Village))
- Allen (Allen, IL)
- Allendale (Allendale, IL)
- Allens Grove (Allens Grove, IL)
- Allenville (Allenville, IL)
- Allerton (Allerton, IL (Champaign County - Village))
- Allerton (Allerton, IL (Vermilion County - Village))
- Allin (Allin, IL)
- Allison (Allison, IL)
- Alma (Alma, IL (Marion County - Village))
- Alma (Alma, IL (Marion County - Township))
- Alorton (Alorton, IL)
- Alpha (Alpha, IL)
- Alsey (Alsey, IL)
- Alsip (Alsip, IL)
- Altamont (Altamont, IL)
- Alto (Alto, IL)
- Alto Pass (Alto Pass, IL)
- Alton (Alton, IL (Madison County - Township))
- Alton (Alton, IL (Madison County - City))
- Altona (Altona, IL)
- Alvan (Alvan, IL)
- Amboy (Amboy, IL (Lee County - Township))
- Amboy (Amboy, IL (Lee County - City))
- Amity (Amity, IL)
- Anchor (Anchor, IL (McLean County - Village))
- Anchor (Anchor, IL (McLean County - Township))
- Andalusia (Andalusia, IL (Rock Island County - Township))
- Andalusia (Andalusia, IL (Rock Island County - Village))
- Anderson (Anderson, IL)
- Andover (Andover, IL (Henry County - Village))
- Andover (Andover, IL (Henry County - Township))
- Anna (Anna, IL)
- Annawan (Annawan, IL (Henry County - Town))
- Annawan (Annawan, IL (Henry County - Township))
- Annawan (Annawan, IL (Bureau County - Town))
- Antioch (Antioch, IL (Lake County - Village))
- Antioch (Antioch, IL (Lake County - Township))
- Appanoose (Appanoose, IL)
- Apple Canyon Lake (Apple Canyon Lake, IL)
- Apple River (Apple River, IL (Jo Daviess County - Village))
- Apple River (Apple River, IL (Jo Daviess County - Township))
- Arcola (Arcola, IL (Douglas County - Township))
- Arcola (Arcola, IL (Douglas County - City))
- Arenzville (Arenzville, IL (Cass County - Village))
- Arenzville (Arenzville, IL (Cass County - Township))
- Argenta (Argenta, IL)
- Arispie (Arispie, IL)
- Arlington (Arlington, IL)
- Arlington Heights (Arlington Heights, IL (Cook County - Village))
- Arlington Heights (Arlington Heights, IL (Lake County - Village))
- Armington (Armington, IL)
- Aroma (Aroma, IL)
- Aroma Park (Aroma Park, IL)
- Arrington (Arrington, IL)
- Arrowsmith (Arrowsmith, IL (McLean County - Village))
- Arrowsmith (Arrowsmith, IL (McLean County - Township))
- Artesia (Artesia, IL)
- Arthur (Arthur, IL (Douglas County - Village))
- Arthur (Arthur, IL (Moultrie County - Village))
- Asbury (Asbury, IL)
- Ash Grove (Ash Grove, IL (Iroquois County - Township))
- Ash Grove (Ash Grove, IL (Shelby County - Township))
- Ashkum (Ashkum, IL (Iroquois County - Township))
- Ashkum (Ashkum, IL (Iroquois County - Village))
- Ashland (Ashland, IL (Cass County - Village))
- Ashland (Ashland, IL (Cass County - Township))
- Ashley (Ashley, IL (Washington County - Township))
- Ashley (Ashley, IL (Washington County - City))
- Ashmore (Ashmore, IL (Coles County - Township))
- Ashmore (Ashmore, IL (Coles County - Village))
- Ashton (Ashton, IL (Lee County - Township))
- Ashton (Ashton, IL (Lee County - Village))
- Assumption (Assumption, IL (Christian County - City))
- Assumption (Assumption, IL (Christian County - Township))
- Astoria (Astoria, IL (Fulton County - Town))
- Astoria (Astoria, IL (Fulton County - Township))
- Athens (Athens, IL)
- Atkinson (Atkinson, IL (Henry County - Town))
- Atkinson (Atkinson, IL (Henry County - Township))
- Atlanta (Atlanta, IL (Logan County - City))
- Atlanta (Atlanta, IL (Logan County - Township))
- Atlas (Atlas, IL)
- Atwood (Atwood, IL (Douglas County - Village))
- Atwood (Atwood, IL (Piatt County - Village))
- Auburn (Auburn, IL (Clark County - Township))
- Auburn (Auburn, IL (Sangamon County - City))
- Auburn (Auburn, IL (Sangamon County - Township))
- Audubon (Audubon, IL)
- Augusta (Augusta, IL (Hancock County - Township))
- Augusta (Augusta, IL (Hancock County - Village))
- Aurora (Aurora, IL (DuPage County - City))
- Aurora (Aurora, IL (Kane County - City))
- Aurora (Aurora, IL (Kane County - Township))
- Aurora (Aurora, IL (Will County - City))
- Aurora (Aurora, IL (Kendall County - City))
- Austin (Austin, IL)
- Aux Sable (Aux Sable, IL)
- Ava (Ava, IL)
- Avena (Avena, IL)
- Aviston (Aviston, IL)
- Avoca (Avoca, IL)
- Avon (Avon, IL (Fulton County - Village))
- Avon (Avon, IL (Lake County - Township))
- Avon (Avon, IL (Warren County - Village))
- Ayers (Ayers, IL)
B
- Bainbridge (Bainbridge, IL)
- Bald Hill (Bald Hill, IL)
- Baldwin (Baldwin, IL)
- Ball (Ball, IL)
- Banner (Banner, IL (Fulton County - Village))
- Banner (Banner, IL (Fulton County - Township))
- Banner (Banner, IL (Effingham County - Township))
- Bannockburn (Bannockburn, IL)
- Bardolph (Bardolph, IL)
- Barnett (Barnett, IL)
- Barnhill (Barnhill, IL)
- Barr (Barr, IL)
- Barren (Barren, IL)
- Barrington (Barrington, IL (Cook County - Village))
- Barrington (Barrington, IL (Cook County - Township))
- Barrington (Barrington, IL (Lake County - Village))
- Barrington Hills (Barrington Hills, IL (Cook County - Village))
- Barrington Hills (Barrington Hills, IL (Kane County - Village))
- Barrington Hills (Barrington Hills, IL (Lake County - Village))
- Barrington Hills (Barrington Hills, IL (McHenry County - Village))
- Barry (Barry, IL (Pike County - City))
- Barry (Barry, IL (Pike County - Township))
- Bartelso (Bartelso, IL)
- Bartlett (Bartlett, IL (DuPage County - Village))
- Bartlett (Bartlett, IL (Cook County - Village))
- Bartlett (Bartlett, IL (Kane County - Village))
- Bartonville (Bartonville, IL)
- Basco (Basco, IL)
- Batavia (Batavia, IL (DuPage County - City))
- Batavia (Batavia, IL (Kane County - City))
- Batavia (Batavia, IL (Kane County - Township))
- Batchtown (Batchtown, IL)
- Bath (Bath, IL (Mason County - Township))
- Bath (Bath, IL (Mason County - Village))
- Bay View Gardens (Bay View Gardens, IL)
- Baylis (Baylis, IL)
- Beach Park (Beach Park, IL)
- Bear Creek (Bear Creek, IL (Hancock County - Township))
- Bear Creek (Bear Creek, IL (Christian County - Township))
- Bear Grove (Bear Grove, IL)
- Beardstown (Beardstown, IL (Cass County - City))
- Beardstown (Beardstown, IL (Cass County - Township))
- Beason (Beason, IL)
- Beaucoup (Beaucoup, IL)
- Beaver (Beaver, IL)
- Beaver Creek (Beaver Creek, IL)
- Beaverville (Beaverville, IL (Iroquois County - Township))
- Beaverville (Beaverville, IL (Iroquois County - Village))
- Beckemeyer (Beckemeyer, IL)
- Bedford (Bedford, IL)
- Bedford Park (Bedford Park, IL)
- Beecher (Beecher, IL)
- Beecher City (Beecher City, IL)
- Belgium (Belgium, IL)
- Belknap (Belknap, IL)
- Bell Plain (Bell Plain, IL)
- Belle Prairie (Belle Prairie, IL)
- Belle Rive (Belle Rive, IL)
- Belleville (Belleville, IL (St. Clair County - City))
- Belleville (Belleville, IL (St. Clair County - Township))
- Bellevue (Bellevue, IL)
- Bellflower (Bellflower, IL (McLean County - Village))
- Bellflower (Bellflower, IL (McLean County - Township))
- Bellmont (Bellmont, IL)
- Bellwood (Bellwood, IL)
- Belmont (Belmont, IL)
- Belvidere (Belvidere, IL (Boone County - Township))
- Belvidere (Belvidere, IL (Boone County - City))
- Bement (Bement, IL (Piatt County - Township))
- Bement (Bement, IL (Piatt County - Village))
- Benld (Benld, IL)
- Bennington (Bennington, IL)
- Bensenville (Bensenville, IL (DuPage County - Village))
- Bensenville (Bensenville, IL (Cook County - Village))
- Benson (Benson, IL)
- Bentley (Bentley, IL)
- Benton (Benton, IL (Franklin County - Township))
- Benton (Benton, IL (Franklin County - City))
- Benton (Benton, IL (Lake County - Township))
- Berkeley (Berkeley, IL)
- Berlin (Berlin, IL (Bureau County - Township))
- Berlin (Berlin, IL (Sangamon County - Village))
- Bernadotte (Bernadotte, IL)
- Berreman (Berreman, IL)
- Berry (Berry, IL)
- Berwick (Berwick, IL)
- Berwyn (Berwyn, IL (Cook County - City))
- Berwyn (Berwyn, IL (Cook County - Township))
- Bethalto (Bethalto, IL)
- Bethany (Bethany, IL)
- Bethel (Bethel, IL)
- Beverly (Beverly, IL)
- Bible Grove (Bible Grove, IL)
- Big Grove (Big Grove, IL)
- Big Mound (Big Mound, IL)
- Big Rock (Big Rock, IL (Kane County - Village))
- Big Rock (Big Rock, IL (Kane County - Township))
- Big Spring (Big Spring, IL)
- Biggsville (Biggsville, IL (Henderson County - Village))
- Biggsville (Biggsville, IL (Henderson County - Township))
- Bingham (Bingham, IL)
- Bird (Bird, IL)
- Bishop (Bishop, IL)
- Bishop Hill (Bishop Hill, IL)
- Bismarck (Bismarck, IL)
- Blackberry (Blackberry, IL)
- Blackhawk (Blackhawk, IL)
- Blair (Blair, IL)
- Blandinsville (Blandinsville, IL (McDonough County - Township))
- Blandinsville (Blandinsville, IL (McDonough County - Village))
- Blissville (Blissville, IL)
- Bloom (Bloom, IL)
- Bloomingdale (Bloomingdale, IL (DuPage County - Village))
- Bloomingdale (Bloomingdale, IL (DuPage County - Township))
- Bloomington (Bloomington, IL (McLean County - City))
- Bloomington (Bloomington, IL (McLean County - Township))
- Bloomington City (Bloomington City, IL)
- Blount (Blount, IL)
- Blue Island (Blue Island, IL)
- Blue Mound (Blue Mound, IL (McLean County - Township))
- Blue Mound (Blue Mound, IL (Macon County - Township))
- Blue Mound (Blue Mound, IL (Macon County - Village))
- Blue Ridge (Blue Ridge, IL)
- Bluff Springs (Bluff Springs, IL)
- Bluffdale (Bluffdale, IL)
- Bluffs (Bluffs, IL)
- Bluford (Bluford, IL)
- Bois D'Arc (Bois D'Arc, IL)
- Bolingbrook (Bolingbrook, IL (DuPage County - Village))
- Bolingbrook (Bolingbrook, IL (Will County - Village))
- Bolo (Bolo, IL)
- Bondville (Bondville, IL)
- Bone Gap (Bone Gap, IL)
- Bonfield (Bonfield, IL)
- Bonnie (Bonnie, IL)
- Bonpas (Bonpas, IL)
- Bonus (Bonus, IL)
- Boody (Boody, IL)
- Boone (Boone, IL)
- Boulder Hill (Boulder Hill, IL)
- Bourbon (Bourbon, IL)
- Bourbonnais (Bourbonnais, IL (Kankakee County - Township))
- Bourbonnais (Bourbonnais, IL (Kankakee County - Village))
- Bowdre (Bowdre, IL)
- Bowen (Bowen, IL)
- Bowlesville (Bowlesville, IL)
- Bowling (Bowling, IL)
- Bowling Green (Bowling Green, IL)
- Boynton (Boynton, IL)
- Braceville (Braceville, IL (Grundy County - Township))
- Braceville (Braceville, IL (Grundy County - Village))
- Braceville (Braceville, IL (Will County - Village))
- Bradford (Bradford, IL (Lee County - Township))
- Bradford (Bradford, IL (Stark County - Village))
- Bradley (Bradley, IL (Jackson County - Township))
- Bradley (Bradley, IL (Kankakee County - Village))
- Braidwood (Braidwood, IL)
- Breese (Breese, IL (Clinton County - City))
- Breese (Breese, IL (Clinton County - Township))
- Bremen (Bremen, IL)
- Brenton (Brenton, IL)
- Bridgeport (Bridgeport, IL (Lawrence County - City))
- Bridgeport (Bridgeport, IL (Lawrence County - Township))
- Bridgeview (Bridgeview, IL)
- Brighton (Brighton, IL (Jersey County - Village))
- Brighton (Brighton, IL (Macoupin County - Village))
- Brighton (Brighton, IL (Macoupin County - Township))
- Brimfield (Brimfield, IL (Peoria County - Village))
- Brimfield (Brimfield, IL (Peoria County - Township))
- Bristol (Bristol, IL)
- Broadlands (Broadlands, IL)
- Broadview (Broadview, IL)
- Broadwell (Broadwell, IL (Logan County - Village))
- Broadwell (Broadwell, IL (Logan County - Township))
- Brocton (Brocton, IL)
- Brookfield (Brookfield, IL (Cook County - Village))
- Brookfield (Brookfield, IL (La Salle County - Township))
- Brooklyn (Brooklyn, IL (Schuyler County - Township))
- Brooklyn (Brooklyn, IL (Lee County - Township))
- Brooklyn (Brooklyn, IL (St. Clair County - Village))
- Brookport (Brookport, IL)
- Brookside (Brookside, IL)
- Brookville (Brookville, IL)
- Broughton (Broughton, IL (Hamilton County - Village))
- Broughton (Broughton, IL (Livingston County - Township))
- Brouilletts Creek (Brouilletts Creek, IL)
- Brown (Brown, IL)
- Browning (Browning, IL (Franklin County - Township))
- Browning (Browning, IL (Schuyler County - Township))
- Browning (Browning, IL (Schuyler County - Village))
- Browns (Browns, IL)
- Brownstown (Brownstown, IL)
- Bruce (Bruce, IL)
- Brushy (Brushy, IL)
- Brushy Mound (Brushy Mound, IL)
- Brussels (Brussels, IL)
- Bryant (Bryant, IL)
- Buck (Buck, IL)
- Buckeye (Buckeye, IL)
- Buckhart (Buckhart, IL)
- Buckheart (Buckheart, IL)
- Buckingham (Buckingham, IL)
- Buckley (Buckley, IL)
- Buckner (Buckner, IL)
- Buda (Buda, IL)
- Buena Vista (Buena Vista, IL)
- Buffalo (Buffalo, IL (Ogle County - Township))
- Buffalo (Buffalo, IL (Sangamon County - Village))
- Buffalo Grove (Buffalo Grove, IL (Cook County - Village))
- Buffalo Grove (Buffalo Grove, IL (Lake County - Village))
- Buffalo Hart (Buffalo Hart, IL)
- Buffalo Prairie (Buffalo Prairie, IL)
- Bull Valley (Bull Valley, IL)
- Bulpitt (Bulpitt, IL)
- Buncombe (Buncombe, IL)
- Bunker Hill (Bunker Hill, IL (Macoupin County - City))
- Bunker Hill (Bunker Hill, IL (Macoupin County - Township))
- Burbank (Burbank, IL)
- Bureau (Bureau, IL)
- Bureau Junction (Bureau Junction, IL)
- Burgess (Burgess, IL)
- Burlington (Burlington, IL (Kane County - Village))
- Burlington (Burlington, IL (Kane County - Township))
- Burnham (Burnham, IL)
- Burns (Burns, IL)
- Burnt Prairie (Burnt Prairie, IL (White County - Township))
- Burnt Prairie (Burnt Prairie, IL (White County - Village))
- Burr Ridge (Burr Ridge, IL (DuPage County - Village))
- Burr Ridge (Burr Ridge, IL (Cook County - Village))
- Burritt (Burritt, IL)
- Burton (Burton, IL (McHenry County - Township))
- Burton (Burton, IL (Adams County - Township))
- Bush (Bush, IL)
- Bushnell (Bushnell, IL (McDonough County - Township))
- Bushnell (Bushnell, IL (McDonough County - City))
- Butler (Butler, IL (Montgomery County - Village))
- Butler (Butler, IL (Vermilion County - Township))
- Butler Grove (Butler Grove, IL)
- Button (Button, IL)
- Byron (Byron, IL (Ogle County - Township))
- Byron (Byron, IL (Ogle County - City))
C
- Cabery (Cabery, IL (Ford County - Village))
- Cabery (Cabery, IL (Kankakee County - Village))
- Cahokia (Cahokia, IL (St. Clair County - Village))
- Cahokia (Cahokia, IL (Macoupin County - Township))
- Cairo (Cairo, IL)
- Caledonia (Caledonia, IL (Boone County - Township))
- Caledonia (Caledonia, IL (Boone County - Village))
- Calhoun (Calhoun, IL)
- Calumet (Calumet, IL)
- Calumet City (Calumet City, IL)
- Calumet Park (Calumet Park, IL)
- Camargo (Camargo, IL (Douglas County - Township))
- Camargo (Camargo, IL (Douglas County - Village))
- Cambria (Cambria, IL)
- Cambridge (Cambridge, IL (Henry County - Village))
- Cambridge (Cambridge, IL (Henry County - Township))
- Camden (Camden, IL (Schuyler County - Township))
- Camp Point (Camp Point, IL (Adams County - Village))
- Camp Point (Camp Point, IL (Adams County - Township))
- Campbell Hill (Campbell Hill, IL)
- Campton (Campton, IL)
- Campton Hills (Campton Hills, IL)
- Campus (Campus, IL)
- Canoe Creek (Canoe Creek, IL)
- Canteen (Canteen, IL)
- Canton (Canton, IL (Fulton County - City))
- Canton (Canton, IL (Fulton County - Township))
- Cantrall (Cantrall, IL)
- Capital (Capital, IL)
- Capron (Capron, IL)
- Carbon Cliff (Carbon Cliff, IL)
- Carbon Hill (Carbon Hill, IL)
- Carbondale (Carbondale, IL (Jackson County - City))
- Carbondale (Carbondale, IL (Jackson County - Township))
- Carbondale (Carbondale, IL (Williamson County - City))
- Carlinville (Carlinville, IL (Macoupin County - City))
- Carlinville (Carlinville, IL (Macoupin County - Township))
- Carlock (Carlock, IL)
- Carlyle (Carlyle, IL (Clinton County - City))
- Carlyle (Carlyle, IL (Clinton County - Township))
- Carman (Carman, IL)
- Carmi (Carmi, IL (White County - Township))
- Carmi (Carmi, IL (White County - City))
- Carol Stream (Carol Stream, IL)
- Carpentersville (Carpentersville, IL)
- Carrier Mills (Carrier Mills, IL (Saline County - Township))
- Carrier Mills (Carrier Mills, IL (Saline County - Village))
- Carrigan (Carrigan, IL)
- Carroll (Carroll, IL)
- Carrollton (Carrollton, IL (Greene County - City))
- Carrollton (Carrollton, IL (Greene County - Township))
- Carterville (Carterville, IL)
- Carthage (Carthage, IL (Hancock County - Township))
- Carthage (Carthage, IL (Hancock County - City))
- Cartwright (Cartwright, IL)
- Cary (Cary, IL)
- Casey (Casey, IL (Clark County - Township))
- Casey (Casey, IL (Clark County - City))
- Casey (Casey, IL (Cumberland County - City))
- Caseyville (Caseyville, IL (St. Clair County - Village))
- Caseyville (Caseyville, IL (St. Clair County - Township))
- Casner (Casner, IL)
- Cass (Cass, IL)
- Catlin (Catlin, IL (Vermilion County - Village))
- Catlin (Catlin, IL (Vermilion County - Township))
- Cave (Cave, IL)
- Cave-In-Rock (Cave-In-Rock, IL)
- Cazenovia (Cazenovia, IL)
- Cedar (Cedar, IL)
- Cedar Point (Cedar Point, IL)
- Cedarville (Cedarville, IL)
- Central (Central, IL)
- Central City (Central City, IL)
- Centralia (Centralia, IL (Washington County - City))
- Centralia (Centralia, IL (Marion County - City))
- Centralia (Centralia, IL (Marion County - Township))
- Centralia (Centralia, IL (Jefferson County - City))
- Centralia (Centralia, IL (Clinton County - City))
- Centreville (Centreville, IL (St. Clair County - City))
- Centreville (Centreville, IL (St. Clair County - Township))
- Cerro Gordo (Cerro Gordo, IL (Piatt County - Township))
- Cerro Gordo (Cerro Gordo, IL (Piatt County - Village))
- Chadwick (Chadwick, IL)
- Chalmers (Chalmers, IL)
- Chambersburg (Chambersburg, IL)
- Champaign (Champaign, IL (Champaign County - Township))
- Champaign (Champaign, IL (Champaign County - City))
- Champaign City (Champaign City, IL)
- Chandlerville (Chandlerville, IL (Cass County - Village))
- Chandlerville (Chandlerville, IL (Cass County - Township))
- Channahon (Channahon, IL (Grundy County - Village))
- Channahon (Channahon, IL (Will County - Township))
- Channahon (Channahon, IL (Will County - Village))
- Channel Lake (Channel Lake, IL)
- Chapin (Chapin, IL)
- Charleston (Charleston, IL (Coles County - Township))
- Charleston (Charleston, IL (Coles County - City))
- Charlotte (Charlotte, IL)
- Chatham (Chatham, IL (Sangamon County - Village))
- Chatham (Chatham, IL (Sangamon County - Township))
- Chatsworth (Chatsworth, IL (Livingston County - Township))
- Chatsworth (Chatsworth, IL (Livingston County - Town))
- Chebanse (Chebanse, IL (Iroquois County - Township))
- Chebanse (Chebanse, IL (Iroquois County - Village))
- Chebanse (Chebanse, IL (Kankakee County - Village))
- Chemung (Chemung, IL (McHenry County - Census Designated Place))
- Chemung (Chemung, IL (McHenry County - Township))
- Cheney's Grove (Cheney's Grove, IL)
- Chenoa (Chenoa, IL (McLean County - City))
- Chenoa (Chenoa, IL (McLean County - Township))
- Cherry (Cherry, IL)
- Cherry Grove-Shannon (Cherry Grove-Shannon, IL)
- Cherry Valley (Cherry Valley, IL (Winnebago County - Township))
- Cherry Valley (Cherry Valley, IL (Winnebago County - Village))
- Cherry Valley (Cherry Valley, IL (Boone County - Village))
- Chester (Chester, IL (Randolph County - City))
- Chester (Chester, IL (Logan County - Township))
- Chesterfield (Chesterfield, IL (Macoupin County - Village))
- Chesterfield (Chesterfield, IL (Macoupin County - Township))
- Chestnut (Chestnut, IL (Knox County - Township))
- Chestnut (Chestnut, IL (Logan County - Census Designated Place))
- Chicago (Chicago, IL (DuPage County - City))
- Chicago (Chicago, IL (Cook County - City))
- Chicago Heights (Chicago Heights, IL)
- Chicago Ridge (Chicago Ridge, IL)
- Chili (Chili, IL)
- Chillicothe (Chillicothe, IL (Peoria County - City))
- Chillicothe (Chillicothe, IL (Peoria County - Township))
- Chouteau (Chouteau, IL)
- Chrisman (Chrisman, IL)
- Christopher (Christopher, IL)
- Christy (Christy, IL)
- Cicero (Cicero, IL (Cook County - Town))
- Cicero (Cicero, IL (Cook County - Township))
- Cincinnati (Cincinnati, IL (Pike County - Township))
- Cincinnati (Cincinnati, IL (Tazewell County - Township))
- Cisco (Cisco, IL)
- Cisne (Cisne, IL)
- Cissna Park (Cissna Park, IL)
- Claremont (Claremont, IL (Richland County - Village))
- Claremont (Claremont, IL (Richland County - Township))
- Clarendon Hills (Clarendon Hills, IL)
- Clarion (Clarion, IL)
- Clarksburg (Clarksburg, IL)
- Clay City (Clay City, IL (Clay County - Village))
- Clay City (Clay City, IL (Clay County - Township))
- Clayton (Clayton, IL (Woodford County - Township))
- Clayton (Clayton, IL (Adams County - Village))
- Clayton (Clayton, IL (Adams County - Township))
- Clear Lake (Clear Lake, IL (Sangamon County - Village))
- Clear Lake (Clear Lake, IL (Sangamon County - Township))
- Clement (Clement, IL)
- Cleveland (Cleveland, IL)
- Clifton (Clifton, IL)
- Clinton (Clinton, IL (De Witt County - City))
- Clinton (Clinton, IL (DeKalb County - Township))
- Clintonia (Clintonia, IL)
- Clover (Clover, IL)
- Clyde (Clyde, IL)
- Coal City (Coal City, IL (Grundy County - Village))
- Coal City (Coal City, IL (Will County - Village))
- Coal Valley (Coal Valley, IL (Rock Island County - Township))
- Coal Valley (Coal Valley, IL (Rock Island County - Village))
- Coal Valley (Coal Valley, IL (Henry County - Village))
- Coalton (Coalton, IL)
- Coatsburg (Coatsburg, IL)
- Cobden (Cobden, IL)
- Coe (Coe, IL)
- Coffeen (Coffeen, IL)
- Colchester (Colchester, IL (McDonough County - Township))
- Colchester (Colchester, IL (McDonough County - City))
- Cold Spring (Cold Spring, IL)
- Coldbrook (Coldbrook, IL)
- Coleta (Coleta, IL)
- Colfax (Colfax, IL (McLean County - Village))
- Colfax (Colfax, IL (Champaign County - Township))
- Collinsville (Collinsville, IL (St. Clair County - City))
- Collinsville (Collinsville, IL (Madison County - Township))
- Collinsville (Collinsville, IL (Madison County - City))
- Coloma (Coloma, IL)
- Colona (Colona, IL (Henry County - City))
- Colona (Colona, IL (Henry County - Township))
- Colp (Colp, IL)
- Columbia (Columbia, IL (St. Clair County - City))
- Columbia (Columbia, IL (Monroe County - City))
- Columbus (Columbus, IL (Adams County - Village))
- Columbus (Columbus, IL (Adams County - Township))
- Como (Como, IL)
- Compromise (Compromise, IL)
- Compton (Compton, IL)
- Concord (Concord, IL (Iroquois County - Township))
- Concord (Concord, IL (Morgan County - Village))
- Concord (Concord, IL (Bureau County - Township))
- Concord (Concord, IL (Adams County - Township))
- Condit (Condit, IL)
- Congerville (Congerville, IL)
- Cooksville (Cooksville, IL)
- Cooper (Cooper, IL)
- Copley (Copley, IL)
- Coral (Coral, IL)
- Cordova (Cordova, IL (Rock Island County - Township))
- Cordova (Cordova, IL (Rock Island County - Village))
- Cornell (Cornell, IL)
- Cornland (Cornland, IL)
- Cornwall (Cornwall, IL)
- Cortland (Cortland, IL (DeKalb County - Township))
- Cortland (Cortland, IL (DeKalb County - Town))
- Corwin (Corwin, IL)
- Cottage (Cottage, IL)
- Cotton Hill (Cotton Hill, IL)
- Cottonwood (Cottonwood, IL)
- Coulterville (Coulterville, IL)
- Council Hill (Council Hill, IL)
- Country Club Hills (Country Club Hills, IL)
- Countryside (Countryside, IL)
- Covington (Covington, IL)
- Cowden (Cowden, IL)
- Coyne Center (Coyne Center, IL)
- Crab Orchard (Crab Orchard, IL)
- Crainville (Crainville, IL)
- Crane Creek (Crane Creek, IL)
- Creal Springs (Creal Springs, IL)
- Creek (Creek, IL)
- Crescent (Crescent, IL)
- Crescent City (Crescent City, IL)
- Crest Hill (Crest Hill, IL)
- Creston (Creston, IL)
- Crestwood (Crestwood, IL)
- Crete (Crete, IL (Cook County - Village))
- Crete (Crete, IL (Will County - Township))
- Crete (Crete, IL (Will County - Village))
- Creve Coeur (Creve Coeur, IL)
- Crittenden (Crittenden, IL)
- Crook (Crook, IL)
- Crooked Creek (Crooked Creek, IL (Jasper County - Township))
- Crooked Creek (Crooked Creek, IL (Cumberland County - Township))
- Cropsey (Cropsey, IL)
- Crossville (Crossville, IL)
- Crouch (Crouch, IL)
- Cruger (Cruger, IL)
- Crystal Lake (Crystal Lake, IL)
- Crystal Lawns (Crystal Lawns, IL)
- Cuba (Cuba, IL (Fulton County - City))
- Cuba (Cuba, IL (Lake County - Township))
- Cullom (Cullom, IL)
- Cunningham (Cunningham, IL)
- Curran (Curran, IL (Sangamon County - Village))
- Curran (Curran, IL (Sangamon County - Township))
- Custer (Custer, IL)
- Cutler (Cutler, IL)
- Cypress (Cypress, IL)
D
- Dahlgren (Dahlgren, IL (Hamilton County - Village))
- Dahlgren (Dahlgren, IL (Hamilton County - Township))
- Dakota (Dakota, IL (Stephenson County - Village))
- Dakota (Dakota, IL (Stephenson County - Township))
- Dale (Dale, IL)
- Dallas City (Dallas City, IL (Hancock County - Township))
- Dallas City (Dallas City, IL (Hancock County - City))
- Dallas City (Dallas City, IL (Henderson County - City))
- Dalton City (Dalton City, IL)
- Dalzell (Dalzell, IL (La Salle County - Village))
- Dalzell (Dalzell, IL (Bureau County - Village))
- Damiansville (Damiansville, IL)
- Dana (Dana, IL)
- Danforth (Danforth, IL (Iroquois County - Township))
- Danforth (Danforth, IL (Iroquois County - Village))
- Danvers (Danvers, IL (McLean County - Village))
- Danvers (Danvers, IL (McLean County - Township))
- Danville (Danville, IL (Vermilion County - City))
- Danville (Danville, IL (Vermilion County - Township))
- Darien (Darien, IL)
- Darwin (Darwin, IL)
- Davis (Davis, IL)
- Davis Junction (Davis Junction, IL)
- Dawson (Dawson, IL (McLean County - Township))
- Dawson (Dawson, IL (Sangamon County - Village))
- Dayton (Dayton, IL (La Salle County - Census Designated Place))
- Dayton (Dayton, IL (La Salle County - Township))
- De Land (De Land, IL)
- De Pue (De Pue, IL)
- De Soto (De Soto, IL (Jackson County - Village))
- De Soto (De Soto, IL (Jackson County - Township))
- De Witt (De Witt, IL (De Witt County - Village))
- De Witt (De Witt, IL (De Witt County - Township))
- Decatur (Decatur, IL (Macon County - Township))
- Decatur (Decatur, IL (Macon County - City))
- Decker (Decker, IL)
- Deer Creek (Deer Creek, IL (Woodford County - Village))
- Deer Creek (Deer Creek, IL (Tazewell County - Township))
- Deer Creek (Deer Creek, IL (Tazewell County - Village))
- Deer Grove (Deer Grove, IL)
- Deer Park (Deer Park, IL (Cook County - Village))
- Deer Park (Deer Park, IL (Lake County - Village))
- Deer Park (Deer Park, IL (La Salle County - Township))
- Deerfield (Deerfield, IL (Fulton County - Township))
- Deerfield (Deerfield, IL (Cook County - Village))
- Deerfield (Deerfield, IL (Lake County - Village))
- Degognia (Degognia, IL)
- DeKalb (DeKalb, IL (DeKalb County - Township))
- DeKalb (DeKalb, IL (DeKalb County - City))
- Delavan (Delavan, IL (Tazewell County - Township))
- Delavan (Delavan, IL (Tazewell County - City))
- Dement (Dement, IL)
- Denison (Denison, IL)
- Denning (Denning, IL)
- Denver (Denver, IL)
- Derinda (Derinda, IL)
- Derry (Derry, IL)
- Des Plaines (Des Plaines, IL)
- Detroit (Detroit, IL (Pike County - Village))
- Detroit (Detroit, IL (Pike County - Township))
- Diamond (Diamond, IL (Grundy County - Village))
- Diamond (Diamond, IL (Will County - Village))
- Dieterich (Dieterich, IL)
- Dillon (Dillon, IL)
- Dimmick (Dimmick, IL)
- Divernon (Divernon, IL (Sangamon County - Village))
- Divernon (Divernon, IL (Sangamon County - Township))
- Dix (Dix, IL (Ford County - Township))
- Dix (Dix, IL (Jefferson County - Village))
- Dixmoor (Dixmoor, IL)
- Dixon (Dixon, IL (Lee County - Township))
- Dixon (Dixon, IL (Lee County - City))
- Dodds (Dodds, IL)
- Dolson (Dolson, IL)
- Dolton (Dolton, IL)
- Dongola (Dongola, IL)
- Donnellson (Donnellson, IL (Montgomery County - Village))
- Donnellson (Donnellson, IL (Bond County - Village))
- Donovan (Donovan, IL)
- Dora (Dora, IL)
- Dorchester (Dorchester, IL (Macoupin County - Village))
- Dorchester (Dorchester, IL (Macoupin County - Township))
- Dorr (Dorr, IL)
- Douglas (Douglas, IL (Iroquois County - Township))
- Douglas (Douglas, IL (Effingham County - Township))
- Dover (Dover, IL (Bureau County - Township))
- Dover (Dover, IL (Bureau County - Village))
- Dowell (Dowell, IL)
- Downers Grove (Downers Grove, IL (DuPage County - Village))
- Downers Grove (Downers Grove, IL (DuPage County - Township))
- Downs (Downs, IL (McLean County - Village))
- Downs (Downs, IL (McLean County - Township))
- Drummer (Drummer, IL)
- Drury (Drury, IL)
- Dry Grove (Dry Grove, IL)
- Dry Point (Dry Point, IL)
- Du Bois (Du Bois, IL (Washington County - Township))
- Du Bois (Du Bois, IL (Washington County - Village))
- Du Page (Du Page, IL)
- Du Quoin (Du Quoin, IL)
- Duncan (Duncan, IL)
- Dundee (Dundee, IL)
- Dunfermline (Dunfermline, IL)
- Dunham (Dunham, IL)
- Dunlap (Dunlap, IL)
- Dunleith (Dunleith, IL)
- Dupo (Dupo, IL)
- Durand (Durand, IL (Winnebago County - Township))
- Durand (Durand, IL (Winnebago County - Village))
- Durham (Durham, IL)
- Dwight (Dwight, IL (Grundy County - Village))
- Dwight (Dwight, IL (Livingston County - Township))
- Dwight (Dwight, IL (Livingston County - Village))
E
- Eagarville (Eagarville, IL)
- Eagle (Eagle, IL)
- Eagle Creek (Eagle Creek, IL)
- Eagle Point (Eagle Point, IL)
- Earl (Earl, IL)
- Earlville (Earlville, IL)
- East Alton (East Alton, IL)
- East Bend (East Bend, IL)
- East Carondelet (East Carondelet, IL)
- East Dubuque (East Dubuque, IL)
- East Dundee (East Dundee, IL (Cook County - Village))
- East Dundee (East Dundee, IL (Kane County - Village))
- East Eldorado (East Eldorado, IL)
- East Fork (East Fork, IL (Montgomery County - Township))
- East Fork (East Fork, IL (Clinton County - Township))
- East Galena (East Galena, IL)
- East Galesburg (East Galesburg, IL)
- East Gillespie (East Gillespie, IL)
- East Grove (East Grove, IL)
- East Hazel Crest (East Hazel Crest, IL)
- East Lincoln (East Lincoln, IL)
- East Moline (East Moline, IL)
- East Nelson (East Nelson, IL)
- East Oakland (East Oakland, IL)
- East Peoria (East Peoria, IL)
- East St. Louis (East St. Louis, IL (St. Clair County - City))
- East St. Louis (East St. Louis, IL (St. Clair County - Township))
- Eastern (Eastern, IL)
- Easton (Easton, IL)
- Eddyville (Eddyville, IL)
- Eden (Eden, IL)
- Edford (Edford, IL)
- Edgar (Edgar, IL)
- Edgewood (Edgewood, IL)
- Edgington (Edgington, IL)
- Edinburg (Edinburg, IL)
- Edwardsville (Edwardsville, IL (Madison County - Township))
- Edwardsville (Edwardsville, IL (Madison County - City))
- Effingham (Effingham, IL)
- El Paso (El Paso, IL (McLean County - City))
- El Paso (El Paso, IL (Woodford County - City))
- El Paso (El Paso, IL (Woodford County - Township))
- Ela (Ela, IL)
- Elba (Elba, IL)
- Elbridge (Elbridge, IL)
- Elburn (Elburn, IL)
- Eldorado (Eldorado, IL (Saline County - City))
- Eldorado (Eldorado, IL (McDonough County - Township))
- Eldred (Eldred, IL)
- Elgin (Elgin, IL (Cook County - City))
- Elgin (Elgin, IL (Kane County - City))
- Elgin (Elgin, IL (Kane County - Township))
- Eliza (Eliza, IL)
- Elizabeth (Elizabeth, IL (Jo Daviess County - Village))
- Elizabeth (Elizabeth, IL (Jo Daviess County - Township))
- Elizabethtown (Elizabethtown, IL)
- Elk (Elk, IL)
- Elk Grove (Elk Grove, IL)
- Elk Grove Village (Elk Grove Village, IL (DuPage County - Village))
- Elk Grove Village (Elk Grove Village, IL (Cook County - Village))
- Elk Prairie (Elk Prairie, IL)
- Elkhart (Elkhart, IL (Logan County - Village))
- Elkhart (Elkhart, IL (Logan County - Township))
- Elkhorn Grove (Elkhorn Grove, IL)
- Elkville (Elkville, IL)
- Ellington (Ellington, IL)
- Elliott (Elliott, IL)
- Ellis Grove (Ellis Grove, IL)
- Ellison (Ellison, IL)
- Ellisville (Ellisville, IL (Fulton County - Village))
- Ellisville (Ellisville, IL (Fulton County - Township))
- Ellsworth (Ellsworth, IL)
- Elm Grove (Elm Grove, IL)
- Elm River (Elm River, IL)
- Elmhurst (Elmhurst, IL (DuPage County - City))
- Elmhurst (Elmhurst, IL (Cook County - City))
- Elmira (Elmira, IL)
- Elmwood (Elmwood, IL (Peoria County - City))
- Elmwood (Elmwood, IL (Peoria County - Township))
- Elmwood Park (Elmwood Park, IL)
- Elsah (Elsah, IL (Jersey County - Township))
- Elsah (Elsah, IL (Jersey County - Village))
- Elvaston (Elvaston, IL)
- Elwood (Elwood, IL (Will County - Village))
- Elwood (Elwood, IL (Vermilion County - Township))
- Embarrass (Embarrass, IL)
- Emden (Emden, IL)
- Eminence (Eminence, IL)
- Emington (Emington, IL)
- Emma (Emma, IL)
- Emmet (Emmet, IL)
- Empire (Empire, IL)
- Energy (Energy, IL)
- Enfield (Enfield, IL (White County - Township))
- Enfield (Enfield, IL (White County - Village))
- Engelmann (Engelmann, IL)
- English (English, IL)
- Eppards Point (Eppards Point, IL)
- Equality (Equality, IL (Gallatin County - Village))
- Equality (Equality, IL (Gallatin County - Township))
- Erie (Erie, IL (Whiteside County - Village))
- Erie (Erie, IL (Whiteside County - Township))
- Erienna (Erienna, IL)
- Erin (Erin, IL)
- Esmen (Esmen, IL)
- Essex (Essex, IL (Kankakee County - Township))
- Essex (Essex, IL (Kankakee County - Village))
- Essex (Essex, IL (Stark County - Township))
- Eureka (Eureka, IL)
- Evans (Evans, IL)
- Evanston (Evanston, IL (Cook County - City))
- Evanston (Evanston, IL (Cook County - Township))
- Evansville (Evansville, IL)
- Evergreen Park (Evergreen Park, IL)
- Ewing (Ewing, IL (Franklin County - Township))
- Exeter (Exeter, IL)
F
- Fairbury (Fairbury, IL)
- Fairfield (Fairfield, IL (Wayne County - City))
- Fairfield (Fairfield, IL (Bureau County - Township))
- Fairhaven (Fairhaven, IL)
- Fairmont (Fairmont, IL)
- Fairmont City (Fairmont City, IL (St. Clair County - Village))
- Fairmont City (Fairmont City, IL (Madison County - Village))
- Fairmount (Fairmount, IL (Pike County - Township))
- Fairmount (Fairmount, IL (Vermilion County - Village))
- Fairview (Fairview, IL (Fulton County - Village))
- Fairview (Fairview, IL (Fulton County - Township))
- Fairview Heights (Fairview Heights, IL)
- Fall Creek (Fall Creek, IL)
- Fall River (Fall River, IL)
- Fancy Creek (Fancy Creek, IL)
- Farina (Farina, IL (Fayette County - Village))
- Farina (Farina, IL (Marion County - Village))
- Farm Ridge (Farm Ridge, IL)
- Farmer City (Farmer City, IL)
- Farmers (Farmers, IL)
- Farmersville (Farmersville, IL)
- Farmington (Farmington, IL (Fulton County - City))
- Farmington (Farmington, IL (Fulton County - Township))
- Farmington (Farmington, IL (Peoria County - City))
- Farrington (Farrington, IL)
- Fayette (Fayette, IL)
- Fayetteville (Fayetteville, IL (St. Clair County - Village))
- Fayetteville (Fayetteville, IL (St. Clair County - Township))
- Felix (Felix, IL)
- Fenton (Fenton, IL)
- Ferris (Ferris, IL)
- Fidelity (Fidelity, IL (Jersey County - Township))
- Field (Field, IL)
- Fieldon (Fieldon, IL)
- Fillmore (Fillmore, IL (Montgomery County - Village))
- Fillmore (Fillmore, IL (Montgomery County - Township))
- Findlay (Findlay, IL)
- Fisher (Fisher, IL)
- Fithian (Fithian, IL)
- Flagg (Flagg, IL)
- Flanagan (Flanagan, IL)
- Flat Branch (Flat Branch, IL)
- Flat Rock (Flat Rock, IL)
- Flint (Flint, IL)
- Flora (Flora, IL (Clay County - City))
- Flora (Flora, IL (Boone County - Township))
- Floraville (Floraville, IL)
- Florence (Florence, IL (Pike County - Village))
- Florence (Florence, IL (Will County - Township))
- Florence (Florence, IL (Stephenson County - Township))
- Flossmoor (Flossmoor, IL)
- Floyd (Floyd, IL)
- Fondulac (Fondulac, IL)
- Foosland (Foosland, IL)
- Ford Heights (Ford Heights, IL)
- Forest City (Forest City, IL (Mason County - Township))
- Forest City (Forest City, IL (Mason County - Village))
- Forest Lake (Forest Lake, IL)
- Forest Park (Forest Park, IL)
- Forest View (Forest View, IL)
- Forrest (Forrest, IL (Livingston County - Township))
- Forrest (Forrest, IL (Livingston County - Village))
- Forreston (Forreston, IL (Ogle County - Township))
- Forreston (Forreston, IL (Ogle County - Village))
- Forsyth (Forsyth, IL)
- Fort Russell (Fort Russell, IL)
- Foster (Foster, IL (Marion County - Township))
- Foster (Foster, IL (Madison County - Township))
- Fountain Bluff (Fountain Bluff, IL)
- Fountain Creek (Fountain Creek, IL)
- Fountain Green (Fountain Green, IL)
- Four Mile (Four Mile, IL)
- Fox (Fox, IL (Jasper County - Township))
- Fox (Fox, IL (Kendall County - Township))
- Fox Lake (Fox Lake, IL (Lake County - Village))
- Fox Lake (Fox Lake, IL (McHenry County - Village))
- Fox Lake Hills (Fox Lake Hills, IL)
- Fox River Grove (Fox River Grove, IL (Lake County - Village))
- Fox River Grove (Fox River Grove, IL (McHenry County - Village))
- Frankfort (Frankfort, IL (Franklin County - Township))
- Frankfort (Frankfort, IL (Cook County - Village))
- Frankfort (Frankfort, IL (Will County - Township))
- Frankfort (Frankfort, IL (Will County - Village))
- Frankfort Square (Frankfort Square, IL)
- Franklin (Franklin, IL (DeKalb County - Township))
- Franklin (Franklin, IL (Morgan County - Village))
- Franklin Grove (Franklin Grove, IL (Lee County - Township))
- Franklin Grove (Franklin Grove, IL (Lee County - Village))
- Franklin Park (Franklin Park, IL)
- Frederick (Frederick, IL)
- Freeburg (Freeburg, IL (St. Clair County - Village))
- Freeburg (Freeburg, IL (St. Clair County - Township))
- Freedom (Freedom, IL (Carroll County - Township))
- Freedom (Freedom, IL (La Salle County - Township))
- Freeport (Freeport, IL (Stephenson County - City))
- Freeport (Freeport, IL (Stephenson County - Township))
- Fremont (Fremont, IL)
- Friends Creek (Friends Creek, IL)
- Fulton (Fulton, IL (Whiteside County - City))
- Fulton (Fulton, IL (Whiteside County - Township))
- Fults (Fults, IL)
- Funks Grove (Funks Grove, IL)
G
- Gages Lake (Gages Lake, IL)
- Galatia (Galatia, IL (Saline County - Township))
- Galatia (Galatia, IL (Saline County - Village))
- Galena (Galena, IL)
- Galesburg (Galesburg, IL (Knox County - Township))
- Galesburg (Galesburg, IL (Knox County - City))
- Galesburg City (Galesburg City, IL)
- Galva (Galva, IL (Henry County - City))
- Galva (Galva, IL (Henry County - Township))
- Ganeer (Ganeer, IL)
- Garden Hill (Garden Hill, IL)
- Garden Plain (Garden Plain, IL)
- Garden Prairie (Garden Prairie, IL)
- Gardner (Gardner, IL (Grundy County - Village))
- Gardner (Gardner, IL (Sangamon County - Township))
- Garfield (Garfield, IL)
- Garrett (Garrett, IL (Douglas County - Township))
- Garrett (Garrett, IL (Douglas County - Village))
- Gays (Gays, IL)
- Genesee (Genesee, IL)
- Geneseo (Geneseo, IL (Henry County - City))
- Geneseo (Geneseo, IL (Henry County - Township))
- Geneva (Geneva, IL (Kane County - City))
- Geneva (Geneva, IL (Kane County - Township))
- Genoa (Genoa, IL (DeKalb County - Township))
- Genoa (Genoa, IL (DeKalb County - City))
- Georgetown (Georgetown, IL (Vermilion County - City))
- Georgetown (Georgetown, IL (Vermilion County - Township))
- Georgetown (Georgetown, IL (McDonough County - Census Designated Place))
- German (German, IL)
- German Valley (German Valley, IL)
- Germantown (Germantown, IL (Clinton County - Village))
- Germantown (Germantown, IL (Clinton County - Township))
- Germantown Hills (Germantown Hills, IL)
- Germanville (Germanville, IL)
- Gibson City (Gibson City, IL)
- Gifford (Gifford, IL)
- Gilberts (Gilberts, IL)
- Gillespie (Gillespie, IL (Macoupin County - City))
- Gillespie (Gillespie, IL (Macoupin County - Township))
- Gilman (Gilman, IL)
- Gilmer (Gilmer, IL)
- Gilson (Gilson, IL)
- Girard (Girard, IL (Macoupin County - City))
- Girard (Girard, IL (Macoupin County - Township))
- Gladstone (Gladstone, IL (Henderson County - Village))
- Gladstone (Gladstone, IL (Henderson County - Township))
- Glasford (Glasford, IL)
- Glen Carbon (Glen Carbon, IL)
- Glen Ellyn (Glen Ellyn, IL)
- Glencoe (Glencoe, IL)
- Glendale Heights (Glendale Heights, IL)
- Glenview (Glenview, IL)
- Glenwood (Glenwood, IL)
- Godfrey (Godfrey, IL (Madison County - Township))
- Godfrey (Godfrey, IL (Madison County - Village))
- Godley (Godley, IL (Grundy County - Village))
- Godley (Godley, IL (Will County - Village))
- Golconda (Golconda, IL)
- Gold (Gold, IL)
- Gold Hill (Gold Hill, IL)
- Golden (Golden, IL)
- Golf (Golf, IL)
- Good Hope (Good Hope, IL)
- Goode (Goode, IL)
- Goodfarm (Goodfarm, IL)
- Goodfield (Goodfield, IL (Woodford County - Village))
- Goodfield (Goodfield, IL (Tazewell County - Village))
- Goofy Ridge (Goofy Ridge, IL)
- Goose Creek (Goose Creek, IL)
- Goose Lake (Goose Lake, IL)
- Goreville (Goreville, IL)
- Gorham (Gorham, IL)
- Goshen (Goshen, IL)
- Grafton (Grafton, IL (McHenry County - Township))
- Grafton (Grafton, IL (Jersey County - City))
- Grand Detour (Grand Detour, IL (Ogle County - Township))
- Grand Detour (Grand Detour, IL (Ogle County - Census Designated Place))
- Grand Prairie (Grand Prairie, IL)
- Grand Rapids (Grand Rapids, IL)
- Grand Ridge (Grand Ridge, IL)
- Grand Tower (Grand Tower, IL (Jackson County - City))
- Grand Tower (Grand Tower, IL (Jackson County - Township))
- Grandview (Grandview, IL (Edgar County - Township))
- Grandview (Grandview, IL (Sangamon County - Village))
- Grandville (Grandville, IL)
- Grandwood Park (Grandwood Park, IL)
- Granite City (Granite City, IL (Madison County - Township))
- Granite City (Granite City, IL (Madison County - City))
- Grant (Grant, IL (Lake County - Township))
- Grant (Grant, IL (Vermilion County - Township))
- Grant Park (Grant Park, IL)
- Grantfork (Grantfork, IL)
- Granville (Granville, IL (Putnam County - Village))
- Granville (Granville, IL (Putnam County - Township))
- Gray (Gray, IL)
- Grayslake (Grayslake, IL)
- Grayville (Grayville, IL (Edwards County - City))
- Grayville (Grayville, IL (White County - City))
- Green Garden (Green Garden, IL)
- Green Oaks (Green Oaks, IL)
- Green Valley (Green Valley, IL)
- Greenbush (Greenbush, IL)
- Greene (Greene, IL (Mercer County - Township))
- Greene (Greene, IL (Woodford County - Township))
- Greenfield (Greenfield, IL (Greene County - City))
- Greenfield (Greenfield, IL (Grundy County - Township))
- Greenup (Greenup, IL (Cumberland County - Village))
- Greenup (Greenup, IL (Cumberland County - Township))
- Greenview (Greenview, IL)
- Greenville (Greenville, IL (Bureau County - Township))
- Greenville (Greenville, IL (Bond County - City))
- Greenwood (Greenwood, IL (McHenry County - Village))
- Greenwood (Greenwood, IL (McHenry County - Township))
- Greenwood (Greenwood, IL (Christian County - Township))
- Gridley (Gridley, IL (McLean County - Village))
- Gridley (Gridley, IL (McLean County - Township))
- Griggsville (Griggsville, IL (Pike County - City))
- Griggsville (Griggsville, IL (Pike County - Township))
- Grisham (Grisham, IL)
- Grove (Grove, IL)
- Groveland (Groveland, IL (La Salle County - Township))
- Groveland (Groveland, IL (Tazewell County - Township))
- Grover (Grover, IL)
- Guilford (Guilford, IL)
- Gurnee (Gurnee, IL)
H
- Hadley (Hadley, IL)
- Hagener (Hagener, IL)
- Hahnaman (Hahnaman, IL)
- Haines (Haines, IL)
- Hainesville (Hainesville, IL)
- Hale (Hale, IL)
- Hall (Hall, IL)
- Hallock (Hallock, IL)
- Hamburg (Hamburg, IL)
- Hamel (Hamel, IL (Madison County - Township))
- Hamel (Hamel, IL (Madison County - Village))
- Hamilton (Hamilton, IL (Hancock County - City))
- Hamilton (Hamilton, IL (Lee County - Township))
- Hammond (Hammond, IL)
- Hampshire (Hampshire, IL (Kane County - Village))
- Hampshire (Hampshire, IL (Kane County - Township))
- Hampton (Hampton, IL (Rock Island County - Township))
- Hampton (Hampton, IL (Rock Island County - Village))
- Hanaford (Hanaford, IL)
- Hancock (Hancock, IL)
- Hanna (Hanna, IL)
- Hanna City (Hanna City, IL)
- Hanover (Hanover, IL (Jo Daviess County - Village))
- Hanover (Hanover, IL (Jo Daviess County - Township))
- Hanover (Hanover, IL (Cook County - Township))
- Hanover Park (Hanover Park, IL (DuPage County - Village))
- Hanover Park (Hanover Park, IL (Cook County - Village))
- Hardin (Hardin, IL (Pike County - Township))
- Hardin (Hardin, IL (Calhoun County - Village))
- Harlem (Harlem, IL (Stephenson County - Township))
- Harlem (Harlem, IL (Winnebago County - Township))
- Harmon (Harmon, IL (Lee County - Township))
- Harmon (Harmon, IL (Lee County - Village))
- Harmony (Harmony, IL)
- Harp (Harp, IL)
- Harris (Harris, IL)
- Harrisburg (Harrisburg, IL (Saline County - Township))
- Harrisburg (Harrisburg, IL (Saline County - City))
- Harrison (Harrison, IL (Jackson County - Census Designated Place))
- Harrison (Harrison, IL (Winnebago County - Township))
- Harristown (Harristown, IL (Macon County - Township))
- Harristown (Harristown, IL (Macon County - Village))
- Harter (Harter, IL)
- Hartford (Hartford, IL)
- Hartland (Hartland, IL)
- Hartsburg (Hartsburg, IL)
- Harvard (Harvard, IL)
- Harvel (Harvel, IL (Montgomery County - Village))
- Harvel (Harvel, IL (Montgomery County - Township))
- Harvel (Harvel, IL (Christian County - Village))
- Harvey (Harvey, IL)
- Harwood (Harwood, IL)
- Harwood Heights (Harwood Heights, IL)
- Havana (Havana, IL (Mason County - Township))
- Havana (Havana, IL (Mason County - City))
- Haw Creek (Haw Creek, IL)
- Hawthorn Woods (Hawthorn Woods, IL)
- Hawthorne (Hawthorne, IL)
- Hazel Crest (Hazel Crest, IL)
- Hebron (Hebron, IL (McHenry County - Village))
- Hebron (Hebron, IL (McHenry County - Township))
- Hecker (Hecker, IL (St. Clair County - Village))
- Hecker (Hecker, IL (Monroe County - Village))
- Helvetia (Helvetia, IL)
- Henderson (Henderson, IL (Knox County - Township))
- Henderson (Henderson, IL (Knox County - Village))
- Hennepin (Hennepin, IL (Putnam County - Village))
- Hennepin (Hennepin, IL (Putnam County - Township))
- Henning (Henning, IL)
- Henry (Henry, IL (Marshall County - City))
- Henry (Henry, IL (Marshall County - Township))
- Hensley (Hensley, IL)
- Heralds Prairie (Heralds Prairie, IL)
- Heritage Lake (Heritage Lake, IL)
- Herrick (Herrick, IL (Shelby County - Village))
- Herrick (Herrick, IL (Shelby County - Township))
- Herrin (Herrin, IL)
- Herscher (Herscher, IL)
- Hettick (Hettick, IL)
- Heyworth (Heyworth, IL)
- Hickory Hill (Hickory Hill, IL)
- Hickory Hills (Hickory Hills, IL)
- Hickory Point (Hickory Point, IL)
- Hidalgo (Hidalgo, IL)
- Highland (Highland, IL (Grundy County - Township))
- Highland (Highland, IL (Madison County - City))
- Highland Park (Highland Park, IL)
- Highwood (Highwood, IL)
- Hillcrest (Hillcrest, IL)
- Hillsboro (Hillsboro, IL (Montgomery County - City))
- Hillsboro (Hillsboro, IL (Montgomery County - Township))
- Hillsdale (Hillsdale, IL)
- Hillside (Hillside, IL)
- Hillview (Hillview, IL)
- Hillyard (Hillyard, IL)
- Hinckley (Hinckley, IL)
- Hindsboro (Hindsboro, IL)
- Hinsdale (Hinsdale, IL (DuPage County - Village))
- Hinsdale (Hinsdale, IL (Cook County - Village))
- Hire (Hire, IL)
- Hittle (Hittle, IL)
- Hodgkins (Hodgkins, IL)
- Hoffman (Hoffman, IL)
- Hoffman Estates (Hoffman Estates, IL (Cook County - Village))
- Hoffman Estates (Hoffman Estates, IL (Kane County - Village))
- Holiday Hills (Holiday Hills, IL)
- Holiday Shores (Holiday Shores, IL)
- Holland (Holland, IL)
- Hollis (Hollis, IL)
- Homer (Homer, IL (Champaign County - Village))
- Homer (Homer, IL (Will County - Township))
- Homer Glen (Homer Glen, IL)
- Hometown (Hometown, IL)
- Homewood (Homewood, IL)
- Honey Creek (Honey Creek, IL (Crawford County - Township))
- Honey Creek (Honey Creek, IL (Adams County - Township))
- Honey Point (Honey Point, IL)
- Hoopeston (Hoopeston, IL)
- Hooppole (Hooppole, IL)
- Hoosier (Hoosier, IL)
- Hope (Hope, IL)
- Hopedale (Hopedale, IL (Tazewell County - Township))
- Hopedale (Hopedale, IL (Tazewell County - Village))
- Hopewell (Hopewell, IL (Marshall County - Village))
- Hopewell (Hopewell, IL (Marshall County - Township))
- Hopkins (Hopkins, IL)
- Hopkins Park (Hopkins Park, IL)
- Houston (Houston, IL)
- Hoyleton (Hoyleton, IL (Washington County - Township))
- Hoyleton (Hoyleton, IL (Washington County - Village))
- Hudson (Hudson, IL (McLean County - Village))
- Hudson (Hudson, IL (McLean County - Township))
- Huey (Huey, IL)
- Hull (Hull, IL)
- Humboldt (Humboldt, IL (Coles County - Township))
- Humboldt (Humboldt, IL (Coles County - Village))
- Hume (Hume, IL (Edgar County - Village))
- Hume (Hume, IL (Whiteside County - Township))
- Hunt City (Hunt City, IL)
- Hunter (Hunter, IL)
- Huntley (Huntley, IL (Kane County - Village))
- Huntley (Huntley, IL (McHenry County - Village))
- Huntsville (Huntsville, IL)
- Hurlbut (Hurlbut, IL)
- Hurricane (Hurricane, IL)
- Hurst (Hurst, IL)
- Hutsonville (Hutsonville, IL (Crawford County - Township))
- Hutsonville (Hutsonville, IL (Crawford County - Village))
- Hutton (Hutton, IL)
I
- Illini (Illini, IL)
- Illiopolis (Illiopolis, IL (Sangamon County - Village))
- Illiopolis (Illiopolis, IL (Sangamon County - Township))
- Ina (Ina, IL)
- Independence (Independence, IL)
- Indian Creek (Indian Creek, IL (White County - Township))
- Indian Creek (Indian Creek, IL (Lake County - Village))
- Indian Grove (Indian Grove, IL)
- Indian Head Park (Indian Head Park, IL)
- Indian Point (Indian Point, IL)
- Indian Prairie (Indian Prairie, IL)
- Indianola (Indianola, IL)
- Indiantown (Indiantown, IL)
- Industry (Industry, IL (McDonough County - Township))
- Industry (Industry, IL (McDonough County - Village))
- Ingalls Park (Ingalls Park, IL)
- Inverness (Inverness, IL)
- Iola (Iola, IL)
- Ipava (Ipava, IL)
- Irishtown (Irishtown, IL)
- Iroquois (Iroquois, IL (Iroquois County - Township))
- Iroquois (Iroquois, IL (Iroquois County - Village))
- Irving (Irving, IL (Montgomery County - Village))
- Irving (Irving, IL (Montgomery County - Township))
- Irvington (Irvington, IL (Washington County - Township))
- Irvington (Irvington, IL (Washington County - Village))
- Irwin (Irwin, IL)
- Isabel (Isabel, IL)
- Island Grove (Island Grove, IL)
- Island Lake (Island Lake, IL (Lake County - Village))
- Island Lake (Island Lake, IL (McHenry County - Village))
- Itasca (Itasca, IL)
- Iuka (Iuka, IL (Marion County - Village))
- Iuka (Iuka, IL (Marion County - Township))
- Ivesdale (Ivesdale, IL (Piatt County - Village))
- Ivesdale (Ivesdale, IL (Champaign County - Village))
J
- Jackson (Jackson, IL (Will County - Township))
- Jackson (Jackson, IL (Effingham County - Township))
- Jacksonville (Jacksonville, IL)
- Jamaica (Jamaica, IL)
- Jarvis (Jarvis, IL)
- Jasper (Jasper, IL)
- Jefferson (Jefferson, IL)
- Jeffersonville (Jeffersonville, IL)
- Jerome (Jerome, IL)
- Jersey (Jersey, IL)
- Jerseyville (Jerseyville, IL)
- Jewett (Jewett, IL)
- Johannisburg (Johannisburg, IL)
- Johnsburg (Johnsburg, IL)
- Johnson (Johnson, IL (Clark County - Township))
- Johnson (Johnson, IL (Christian County - Township))
- Johnsonville (Johnsonville, IL)
- Johnston City (Johnston City, IL)
- Joliet (Joliet, IL (Will County - Township))
- Joliet (Joliet, IL (Will County - City))
- Joliet (Joliet, IL (Kendall County - City))
- Jonathan Creek (Jonathan Creek, IL)
- Jonesboro (Jonesboro, IL)
- Joppa (Joppa, IL)
- Jordan (Jordan, IL)
- Joshua (Joshua, IL)
- Joy (Joy, IL)
- Jubilee (Jubilee, IL)
- Junction (Junction, IL)
- Junction City (Junction City, IL)
- Justice (Justice, IL)
K
- Kampsville (Kampsville, IL)
- Kane (Kane, IL (Greene County - Village))
- Kane (Kane, IL (Greene County - Township))
- Kaneville (Kaneville, IL (Kane County - Village))
- Kaneville (Kaneville, IL (Kane County - Township))
- Kangley (Kangley, IL)
- Kankakee (Kankakee, IL (Kankakee County - Township))
- Kankakee (Kankakee, IL (Kankakee County - City))
- Kansas (Kansas, IL (Edgar County - Township))
- Kansas (Kansas, IL (Edgar County - Village))
- Kansas (Kansas, IL (Woodford County - Township))
- Kappa (Kappa, IL)
- Karnak (Karnak, IL)
- Kaskaskia (Kaskaskia, IL (Fayette County - Township))
- Keene (Keene, IL)
- Keenes (Keenes, IL)
- Keensburg (Keensburg, IL)
- Keith (Keith, IL)
- Keithsburg (Keithsburg, IL (Mercer County - Township))
- Keithsburg (Keithsburg, IL (Mercer County - City))
- Kell (Kell, IL)
- Kelly (Kelly, IL)
- Kempton (Kempton, IL)
- Kendall (Kendall, IL)
- Kenilworth (Kenilworth, IL)
- Kenney (Kenney, IL)
- Kent (Kent, IL)
- Kerr (Kerr, IL)
- Kerton (Kerton, IL)
- Kewanee (Kewanee, IL (Henry County - City))
- Kewanee (Kewanee, IL (Henry County - Township))
- Keyesport (Keyesport, IL (Bond County - Village))
- Keyesport (Keyesport, IL (Clinton County - Village))
- Kickapoo (Kickapoo, IL)
- Kilbourne (Kilbourne, IL (Mason County - Township))
- Kilbourne (Kilbourne, IL (Mason County - Village))
- Kildeer (Kildeer, IL)
- Kincaid (Kincaid, IL)
- Kinderhook (Kinderhook, IL (Pike County - Village))
- Kinderhook (Kinderhook, IL (Pike County - Township))
- King (King, IL)
- Kingston (Kingston, IL (DeKalb County - Township))
- Kingston (Kingston, IL (DeKalb County - Village))
- Kingston Mines (Kingston Mines, IL)
- Kinkaid (Kinkaid, IL)
- Kinmundy (Kinmundy, IL (Marion County - City))
- Kinmundy (Kinmundy, IL (Marion County - Township))
- Kinsman (Kinsman, IL)
- Kirkland (Kirkland, IL)
- Kirkwood (Kirkwood, IL)
- Knight Prairie (Knight Prairie, IL)
- Knollwood (Knollwood, IL)
- Knox (Knox, IL)
- Knoxville (Knoxville, IL)
L
- La Clede (La Clede, IL)
- La Fayette (La Fayette, IL)
- La Grange (La Grange, IL)
- La Grange Park (La Grange Park, IL)
- La Harpe (La Harpe, IL (Hancock County - Township))
- La Harpe (La Harpe, IL (Hancock County - City))
- La Moille (La Moille, IL (Bureau County - Township))
- La Moille (La Moille, IL (Bureau County - Village))
- La Prairie (La Prairie, IL (Marshall County - Township))
- La Prairie (La Prairie, IL (Adams County - Village))
- La Rose (La Rose, IL)
- Lacon (Lacon, IL (Marshall County - City))
- Lacon (Lacon, IL (Marshall County - Township))
- Ladd (Ladd, IL)
- Laenna (Laenna, IL)
- Lafayette (Lafayette, IL (Coles County - Township))
- Lafayette (Lafayette, IL (Ogle County - Township))
- Lagrange (Lagrange, IL)
- Lake (Lake, IL)
- Lake Barrington (Lake Barrington, IL)
- Lake Bluff (Lake Bluff, IL)
- Lake Camelot (Lake Camelot, IL)
- Lake Catherine (Lake Catherine, IL)
- Lake Forest (Lake Forest, IL)
- Lake Fork (Lake Fork, IL)
- Lake Holiday (Lake Holiday, IL)
- Lake in the Hills (Lake in the Hills, IL)
- Lake Ka-Ho (Lake Ka-Ho, IL)
- Lake of the Woods (Lake of the Woods, IL)
- Lake Petersburg (Lake Petersburg, IL)
- Lake Summerset (Lake Summerset, IL (Stephenson County - Census Designated Place))
- Lake Summerset (Lake Summerset, IL (Winnebago County - Census Designated Place))
- Lake Villa (Lake Villa, IL (Lake County - Village))
- Lake Villa (Lake Villa, IL (Lake County - Township))
- Lake Zurich (Lake Zurich, IL)
- Lakemoor (Lakemoor, IL (Lake County - Village))
- Lakemoor (Lakemoor, IL (McHenry County - Village))
- Lakewood (Lakewood, IL (Shelby County - Township))
- Lakewood (Lakewood, IL (McHenry County - Village))
- Lakewood Shores (Lakewood Shores, IL)
- Lamard (Lamard, IL)
- Lamoine (Lamoine, IL)
- Lamotte (Lamotte, IL)
- Lanark (Lanark, IL)
- Lancaster (Lancaster, IL)
- Lanesville (Lanesville, IL)
- Langleyville (Langleyville, IL)
- Lansing (Lansing, IL)
- Laona (Laona, IL)
- LaPlace (LaPlace, IL)
- Larkinsburg (Larkinsburg, IL)
- LaSalle (LaSalle, IL (La Salle County - Township))
- LaSalle (LaSalle, IL (La Salle County - City))
- Latham (Latham, IL)
- Lawndale (Lawndale, IL)
- Lawrence (Lawrence, IL)
- Lawrenceville (Lawrenceville, IL)
- Le Roy (Le Roy, IL)
- Leaf River (Leaf River, IL (Ogle County - Township))
- Leaf River (Leaf River, IL (Ogle County - Village))
- Lebanon (Lebanon, IL (St. Clair County - City))
- Lebanon (Lebanon, IL (St. Clair County - Township))
- Lee (Lee, IL (Brown County - Township))
- Lee (Lee, IL (Fulton County - Township))
- Lee (Lee, IL (DeKalb County - Village))
- Lee (Lee, IL (Lee County - Village))
- Lee Center (Lee Center, IL)
- Leech (Leech, IL)
- Leef (Leef, IL)
- Leepertown (Leepertown, IL)
- Leland (Leland, IL)
- Leland Grove (Leland Grove, IL)
- Lemont (Lemont, IL (DuPage County - Village))
- Lemont (Lemont, IL (Cook County - Village))
- Lemont (Lemont, IL (Cook County - Township))
- Lemont (Lemont, IL (Will County - Village))
- Lena (Lena, IL)
- Lenox (Lenox, IL)
- Lenzburg (Lenzburg, IL (St. Clair County - Village))
- Lenzburg (Lenzburg, IL (St. Clair County - Township))
- Leonore (Leonore, IL)
- Lerna (Lerna, IL)
- LeRoy (LeRoy, IL)
- Levan (Levan, IL)
- Levee (Levee, IL)
- Lewistown (Lewistown, IL (Fulton County - City))
- Lewistown (Lewistown, IL (Fulton County - Township))
- Lexington (Lexington, IL (McLean County - City))
- Lexington (Lexington, IL (McLean County - Township))
- Leyden (Leyden, IL)
- Liberty (Liberty, IL (Effingham County - Township))
- Liberty (Liberty, IL (Adams County - Village))
- Liberty (Liberty, IL (Adams County - Township))
- Libertyville (Libertyville, IL (Lake County - Village))
- Libertyville (Libertyville, IL (Lake County - Township))
- Licking (Licking, IL)
- Lily Lake (Lily Lake, IL)
- Lima (Lima, IL (Adams County - Village))
- Lima (Lima, IL (Adams County - Township))
- Limestone (Limestone, IL (Kankakee County - Township))
- Limestone (Limestone, IL (Kankakee County - Village))
- Limestone (Limestone, IL (Peoria County - Township))
- Lincoln (Lincoln, IL (Logan County - City))
- Lincoln (Lincoln, IL (Ogle County - Township))
- Lincolnshire (Lincolnshire, IL)
- Lincolnwood (Lincolnwood, IL)
- Lindenhurst (Lindenhurst, IL)
- Linn (Linn, IL)
- Lisbon (Lisbon, IL (Kendall County - Village))
- Lisbon (Lisbon, IL (Kendall County - Township))
- Lisle (Lisle, IL (DuPage County - Village))
- Lisle (Lisle, IL (DuPage County - Township))
- Litchfield (Litchfield, IL)
- Little Mackinaw (Little Mackinaw, IL)
- Little Rock (Little Rock, IL)
- Little York (Little York, IL)
- Littleton (Littleton, IL (Schuyler County - Township))
- Littleton (Littleton, IL (Schuyler County - Village))
- Lively Grove (Lively Grove, IL)
- Liverpool (Liverpool, IL (Fulton County - Village))
- Liverpool (Liverpool, IL (Fulton County - Township))
- Livingston (Livingston, IL)
- Loami (Loami, IL (Sangamon County - Village))
- Loami (Loami, IL (Sangamon County - Township))
- Lockport (Lockport, IL (Will County - Township))
- Lockport (Lockport, IL (Will County - City))
- Locust (Locust, IL)
- Loda (Loda, IL (Iroquois County - Township))
- Loda (Loda, IL (Iroquois County - Village))
- Logan (Logan, IL)
- Lomax (Lomax, IL (Henderson County - Village))
- Lomax (Lomax, IL (Henderson County - Township))
- Lombard (Lombard, IL)
- London Mills (London Mills, IL (Fulton County - Village))
- London Mills (London Mills, IL (Knox County - Village))
- Lone Grove (Lone Grove, IL)
- Long Branch (Long Branch, IL)
- Long Creek (Long Creek, IL (Macon County - Township))
- Long Creek (Long Creek, IL (Macon County - Village))
- Long Grove (Long Grove, IL)
- Long Lake (Long Lake, IL)
- Long Point (Long Point, IL (Livingston County - Township))
- Long Point (Long Point, IL (Livingston County - Village))
- Longview (Longview, IL)
- Looking Glass (Looking Glass, IL)
- Loraine (Loraine, IL (Henry County - Township))
- Loraine (Loraine, IL (Adams County - Village))
- Loran (Loran, IL)
- Lost Nation (Lost Nation, IL)
- Lostant (Lostant, IL)
- Loudon (Loudon, IL)
- Louisville (Louisville, IL (Clay County - Village))
- Louisville (Louisville, IL (Clay County - Township))
- Love (Love, IL)
- Lovejoy (Lovejoy, IL)
- Loves Park (Loves Park, IL (Winnebago County - City))
- Loves Park (Loves Park, IL (Boone County - City))
- Lovington (Lovington, IL (Moultrie County - Village))
- Lovington (Lovington, IL (Moultrie County - Township))
- Lowe (Lowe, IL)
- Lucas (Lucas, IL)
- Ludlow (Ludlow, IL (Champaign County - Township))
- Ludlow (Ludlow, IL (Champaign County - Village))
- Lukin (Lukin, IL)
- Lyman (Lyman, IL)
- Lynchburg (Lynchburg, IL)
- Lyndon (Lyndon, IL (Whiteside County - Village))
- Lyndon (Lyndon, IL (Whiteside County - Township))
- Lynn (Lynn, IL (Henry County - Township))
- Lynn (Lynn, IL (Knox County - Township))
- Lynnville (Lynnville, IL (Morgan County - Village))
- Lynnville (Lynnville, IL (Ogle County - Township))
- Lynwood (Lynwood, IL)
- Lyons (Lyons, IL (Cook County - Village))
- Lyons (Lyons, IL (Cook County - Township))
M
- Macedonia (Macedonia, IL (Franklin County - Village))
- Macedonia (Macedonia, IL (Hamilton County - Village))
- Machesney Park (Machesney Park, IL)
- Mackinaw (Mackinaw, IL (Tazewell County - Township))
- Mackinaw (Mackinaw, IL (Tazewell County - Village))
- Macomb (Macomb, IL (McDonough County - Township))
- Macomb (Macomb, IL (McDonough County - City))
- Macomb City (Macomb City, IL)
- Macon (Macon, IL (Macon County - City))
- Macon (Macon, IL (Bureau County - Township))
- Madison (Madison, IL (Richland County - Township))
- Madison (Madison, IL (St. Clair County - City))
- Madison (Madison, IL (Madison County - City))
- Maeystown (Maeystown, IL)
- Magnolia (Magnolia, IL (Putnam County - Village))
- Magnolia (Magnolia, IL (Putnam County - Township))
- Mahomet (Mahomet, IL (Champaign County - Township))
- Mahomet (Mahomet, IL (Champaign County - Village))
- Maine (Maine, IL (Cook County - Township))
- Maine (Maine, IL (Grundy County - Township))
- Makanda (Makanda, IL (Jackson County - Village))
- Makanda (Makanda, IL (Jackson County - Township))
- Malden (Malden, IL)
- Malone (Malone, IL)
- Malta (Malta, IL (DeKalb County - Township))
- Malta (Malta, IL (DeKalb County - Village))
- Manchester (Manchester, IL (Scott County - Village))
- Manchester (Manchester, IL (Boone County - Township))
- Manhattan (Manhattan, IL (Will County - Township))
- Manhattan (Manhattan, IL (Will County - Village))
- Manito (Manito, IL (Mason County - Township))
- Manito (Manito, IL (Mason County - Village))
- Manlius (Manlius, IL (La Salle County - Township))
- Manlius (Manlius, IL (Bureau County - Township))
- Manlius (Manlius, IL (Bureau County - Village))
- Mansfield (Mansfield, IL)
- Manteno (Manteno, IL (Kankakee County - Township))
- Manteno (Manteno, IL (Kankakee County - Village))
- Maple Park (Maple Park, IL (DeKalb County - Village))
- Maple Park (Maple Park, IL (Kane County - Village))
- Mapleton (Mapleton, IL)
- Maquon (Maquon, IL (Knox County - Township))
- Maquon (Maquon, IL (Knox County - Village))
- Marengo (Marengo, IL (McHenry County - City))
- Marengo (Marengo, IL (McHenry County - Township))
- Marietta (Marietta, IL)
- Marine (Marine, IL (Madison County - Township))
- Marine (Marine, IL (Madison County - Village))
- Marion (Marion, IL (Johnson County - City))
- Marion (Marion, IL (Lee County - Township))
- Marion (Marion, IL (Williamson County - City))
- Marion (Marion, IL (Ogle County - Township))
- Marissa (Marissa, IL (St. Clair County - Village))
- Marissa (Marissa, IL (St. Clair County - Township))
- Mark (Mark, IL)
- Markham (Markham, IL)
- Maroa (Maroa, IL (Macon County - Township))
- Maroa (Maroa, IL (Macon County - City))
- Marquette Heights (Marquette Heights, IL)
- Marrowbone (Marrowbone, IL)
- Marseilles (Marseilles, IL)
- Marshall (Marshall, IL (Clark County - Township))
- Marshall (Marshall, IL (Clark County - City))
- Martin (Martin, IL (Crawford County - Township))
- Martin (Martin, IL (McLean County - Township))
- Martinsburg (Martinsburg, IL)
- Martinsville (Martinsville, IL (Clark County - Township))
- Martinsville (Martinsville, IL (Clark County - City))
- Martinton (Martinton, IL (Iroquois County - Township))
- Martinton (Martinton, IL (Iroquois County - Village))
- Maryland (Maryland, IL)
- Maryville (Maryville, IL)
- Mascoutah (Mascoutah, IL (St. Clair County - City))
- Mascoutah (Mascoutah, IL (St. Clair County - Township))
- Mason (Mason, IL (Effingham County - Town))
- Mason (Mason, IL (Effingham County - Township))
- Mason City (Mason City, IL (Mason County - Township))
- Mason City (Mason City, IL (Mason County - City))
- Matherville (Matherville, IL)
- Matteson (Matteson, IL (Cook County - Village))
- Matteson (Matteson, IL (Will County - Village))
- Mattoon (Mattoon, IL (Coles County - Township))
- Mattoon (Mattoon, IL (Coles County - City))
- Maxwell (Maxwell, IL)
- May (May, IL (Lee County - Township))
- May (May, IL (Christian County - Township))
- Mayberry (Mayberry, IL)
- Mayfield (Mayfield, IL)
- Maywood (Maywood, IL)
- Mazon (Mazon, IL (Grundy County - Township))
- Mazon (Mazon, IL (Grundy County - Village))
- McClellan (McClellan, IL)
- McClure (McClure, IL)
- McCook (McCook, IL)
- McCullom Lake (McCullom Lake, IL)
- McHenry (McHenry, IL (McHenry County - City))
- McHenry (McHenry, IL (McHenry County - Township))
- McKee (McKee, IL)
- McKendree (McKendree, IL)
- McLean (McLean, IL)
- McLeansboro (McLeansboro, IL (Hamilton County - City))
- McLeansboro (McLeansboro, IL (Hamilton County - Township))
- McNabb (McNabb, IL)
- Meacham (Meacham, IL)
- Mechanicsburg (Mechanicsburg, IL (Sangamon County - Village))
- Mechanicsburg (Mechanicsburg, IL (Sangamon County - Township))
- Media (Media, IL (Henderson County - Village))
- Media (Media, IL (Henderson County - Township))
- Medina (Medina, IL)
- Medora (Medora, IL (Jersey County - Village))
- Medora (Medora, IL (Macoupin County - Village))
- Melrose (Melrose, IL (Clark County - Township))
- Melrose (Melrose, IL (Adams County - Township))
- Melrose Park (Melrose Park, IL)
- Melvin (Melvin, IL)
- Mendon (Mendon, IL (Adams County - Village))
- Mendon (Mendon, IL (Adams County - Township))
- Mendota (Mendota, IL (La Salle County - Township))
- Mendota (Mendota, IL (La Salle County - City))
- Menominee (Menominee, IL (Jo Daviess County - Village))
- Menominee (Menominee, IL (Jo Daviess County - Township))
- Mercer (Mercer, IL)
- Meredosia (Meredosia, IL)
- Meriden (Meriden, IL)
- Meridian (Meridian, IL)
- Merrionette Park (Merrionette Park, IL)
- Metamora (Metamora, IL (Woodford County - Village))
- Metamora (Metamora, IL (Woodford County - Township))
- Metcalf (Metcalf, IL)
- Metropolis (Metropolis, IL)
- Mettawa (Mettawa, IL)
- Middlefork (Middlefork, IL)
- Middleport (Middleport, IL)
- Middletown (Middletown, IL)
- Midlothian (Midlothian, IL)
- Milan (Milan, IL (DeKalb County - Township))
- Milan (Milan, IL (Rock Island County - Village))
- Milford (Milford, IL (Iroquois County - Township))
- Milford (Milford, IL (Iroquois County - Village))
- Milks Grove (Milks Grove, IL)
- Mill Creek (Mill Creek, IL)
- Mill Shoals (Mill Shoals, IL (Wayne County - Village))
- Mill Shoals (Mill Shoals, IL (White County - Township))
- Mill Shoals (Mill Shoals, IL (White County - Village))
- Millbrook (Millbrook, IL (Kendall County - Village))
- Millbrook (Millbrook, IL (Peoria County - Township))
- Milledgeville (Milledgeville, IL)
- Miller (Miller, IL)
- Millersburg (Millersburg, IL)
- Millington (Millington, IL (Kendall County - Village))
- Millington (Millington, IL (La Salle County - Village))
- Mills (Mills, IL)
- Millstadt (Millstadt, IL (St. Clair County - Village))
- Millstadt (Millstadt, IL (St. Clair County - Township))
- Milo (Milo, IL)
- Milton (Milton, IL (DuPage County - Township))
- Mineral (Mineral, IL (Bureau County - Township))
- Mineral (Mineral, IL (Bureau County - Village))
- Minier (Minier, IL)
- Minonk (Minonk, IL (Woodford County - City))
- Minonk (Minonk, IL (Woodford County - Township))
- Minooka (Minooka, IL (Grundy County - Village))
- Minooka (Minooka, IL (Will County - Village))
- Minooka (Minooka, IL (Kendall County - Village))
- Mission (Mission, IL)
- Mississippi (Mississippi, IL)
- Mitchell (Mitchell, IL)
- Moccasin (Moccasin, IL)
- Modesto (Modesto, IL)
- Mokena (Mokena, IL)
- Moline (Moline, IL (Rock Island County - Township))
- Moline (Moline, IL (Rock Island County - City))
- Momence (Momence, IL (Kankakee County - Township))
- Momence (Momence, IL (Kankakee County - City))
- Mona (Mona, IL)
- Monee (Monee, IL (Will County - Township))
- Monee (Monee, IL (Will County - Village))
- Money Creek (Money Creek, IL)
- Monmouth (Monmouth, IL (Warren County - City))
- Monmouth (Monmouth, IL (Warren County - Township))
- Monroe (Monroe, IL)
- Monroe Center (Monroe Center, IL)
- Montebello (Montebello, IL)
- Montezuma (Montezuma, IL)
- Montgomery (Montgomery, IL (Crawford County - Township))
- Montgomery (Montgomery, IL (Kane County - Village))
- Montgomery (Montgomery, IL (Kendall County - Village))
- Montgomery (Montgomery, IL (Woodford County - Township))
- Monticello (Monticello, IL (Piatt County - Township))
- Monticello (Monticello, IL (Piatt County - City))
- Montmorency (Montmorency, IL)
- Montrose (Montrose, IL (Cumberland County - Village))
- Montrose (Montrose, IL (Effingham County - Village))
- Moores Prairie (Moores Prairie, IL)
- Moraine (Moraine, IL)
- Morgan (Morgan, IL)
- Moro (Moro, IL)
- Morris (Morris, IL (Grundy County - Township))
- Morris (Morris, IL (Grundy County - City))
- Morrison (Morrison, IL)
- Morrisonville (Morrisonville, IL)
- Morton (Morton, IL (Tazewell County - Township))
- Morton (Morton, IL (Tazewell County - Village))
- Morton Grove (Morton Grove, IL)
- Mosquito (Mosquito, IL)
- Mound (Mound, IL (Effingham County - Township))
- Mound (Mound, IL (McDonough County - Township))
- Mound City (Mound City, IL)
- Mound Station (Mound Station, IL)
- Mounds (Mounds, IL)
- Mount Auburn (Mount Auburn, IL (Christian County - Village))
- Mount Auburn (Mount Auburn, IL (Christian County - Township))
- Mount Carmel (Mount Carmel, IL)
- Mount Carroll (Mount Carroll, IL (Carroll County - Township))
- Mount Carroll (Mount Carroll, IL (Carroll County - City))
- Mount Clare (Mount Clare, IL)
- Mount Erie (Mount Erie, IL (Wayne County - Village))
- Mount Erie (Mount Erie, IL (Wayne County - Township))
- Mount Hope (Mount Hope, IL)
- Mount Morris (Mount Morris, IL (Ogle County - Township))
- Mount Morris (Mount Morris, IL (Ogle County - Village))
- Mount Olive (Mount Olive, IL (Macoupin County - City))
- Mount Olive (Mount Olive, IL (Macoupin County - Township))
- Mount Pleasant (Mount Pleasant, IL)
- Mount Prospect (Mount Prospect, IL)
- Mount Pulaski (Mount Pulaski, IL (Logan County - City))
- Mount Pulaski (Mount Pulaski, IL (Logan County - Township))
- Mount Sterling (Mount Sterling, IL (Brown County - City))
- Mount Sterling (Mount Sterling, IL (Brown County - Township))
- Mount Vernon (Mount Vernon, IL (Jefferson County - City))
- Mount Vernon (Mount Vernon, IL (Jefferson County - Township))
- Mount Zion (Mount Zion, IL (Macon County - Township))
- Mount Zion (Mount Zion, IL (Macon County - Village))
- Mountain (Mountain, IL)
- Moweaqua (Moweaqua, IL (Shelby County - Village))
- Moweaqua (Moweaqua, IL (Shelby County - Township))
- Moweaqua (Moweaqua, IL (Christian County - Village))
- Muddy (Muddy, IL)
- Mulberry Grove (Mulberry Grove, IL (Bond County - Village))
- Mulberry Grove (Mulberry Grove, IL (Bond County - Township))
- Mulkeytown (Mulkeytown, IL)
- Muncie (Muncie, IL)
- Mundelein (Mundelein, IL)
- Munson (Munson, IL)
- Murdock (Murdock, IL)
- Murphysboro (Murphysboro, IL (Jackson County - City))
- Murphysboro (Murphysboro, IL (Jackson County - Township))
- Murrayville (Murrayville, IL)
N
- Na-Au-Say (Na-Au-Say, IL)
- Nachusa (Nachusa, IL)
- Nameoki (Nameoki, IL)
- Naperville (Naperville, IL (DuPage County - City))
- Naperville (Naperville, IL (DuPage County - Township))
- Naperville (Naperville, IL (Will County - City))
- Naplate (Naplate, IL)
- Nashville (Nashville, IL (Washington County - Township))
- Nashville (Nashville, IL (Washington County - City))
- Nason (Nason, IL)
- Nauvoo (Nauvoo, IL (Hancock County - Township))
- Nauvoo (Nauvoo, IL (Hancock County - City))
- Nebo (Nebo, IL)
- Nebraska (Nebraska, IL)
- Nelson (Nelson, IL (Lee County - Township))
- Nelson (Nelson, IL (Lee County - Village))
- Neoga (Neoga, IL (Cumberland County - City))
- Neoga (Neoga, IL (Cumberland County - Township))
- Neponset (Neponset, IL (Bureau County - Township))
- Neponset (Neponset, IL (Bureau County - Village))
- Nettle Creek (Nettle Creek, IL)
- Nevada (Nevada, IL)
- New Athens (New Athens, IL (St. Clair County - Village))
- New Athens (New Athens, IL (St. Clair County - Township))
- New Baden (New Baden, IL (Clinton County - Village))
- New Baden (New Baden, IL (St. Clair County - Village))
- New Bedford (New Bedford, IL)
- New Berlin (New Berlin, IL (Sangamon County - Village))
- New Berlin (New Berlin, IL (Sangamon County - Township))
- New Boston (New Boston, IL (Mercer County - Township))
- New Boston (New Boston, IL (Mercer County - City))
- New Burnside (New Burnside, IL)
- New Canton (New Canton, IL)
- New Douglas (New Douglas, IL (Madison County - Township))
- New Douglas (New Douglas, IL (Madison County - Village))
- New Grand Chain (New Grand Chain, IL)
- New Haven (New Haven, IL (Gallatin County - Village))
- New Haven (New Haven, IL (Gallatin County - Township))
- New Haven (New Haven, IL (White County - Village))
- New Holland (New Holland, IL)
- New Lenox (New Lenox, IL (Will County - Township))
- New Lenox (New Lenox, IL (Will County - Village))
- New Milford (New Milford, IL)
- New Minden (New Minden, IL)
- New Salem (New Salem, IL (Pike County - Village))
- New Salem (New Salem, IL (Pike County - Township))
- New Salem (New Salem, IL (McDonough County - Township))
- New Trier (New Trier, IL)
- Newark (Newark, IL)
- Newburg (Newburg, IL)
- Newcomb (Newcomb, IL)
- Newell (Newell, IL)
- Newman (Newman, IL (Douglas County - Township))
- Newman (Newman, IL (Douglas County - City))
- Newport (Newport, IL)
- Newton (Newton, IL (Jasper County - City))
- Newton (Newton, IL (Whiteside County - Township))
- Newtown (Newtown, IL)
- Niantic (Niantic, IL (Macon County - Township))
- Niantic (Niantic, IL (Macon County - Village))
- Niles (Niles, IL (Cook County - Village))
- Niles (Niles, IL (Cook County - Township))
- Nilwood (Nilwood, IL (Macoupin County - Township))
- Nixon (Nixon, IL)
- Noble (Noble, IL (Richland County - Village))
- Noble (Noble, IL (Richland County - Township))
- Nokomis (Nokomis, IL (Montgomery County - City))
- Nokomis (Nokomis, IL (Montgomery County - Township))
- Nora (Nora, IL (Jo Daviess County - Village))
- Nora (Nora, IL (Jo Daviess County - Township))
- Normal (Normal, IL (McLean County - Town))
- Normal (Normal, IL (McLean County - Township))
- Norman (Norman, IL)
- Norridge (Norridge, IL)
- Norris (Norris, IL)
- Norris City (Norris City, IL)
- North Aurora (North Aurora, IL)
- North Barrington (North Barrington, IL)
- North Chicago (North Chicago, IL)
- North City (North City, IL)
- North Fork (North Fork, IL)
- North Henderson (North Henderson, IL (Mercer County - Township))
- North Henderson (North Henderson, IL (Mercer County - Village))
- North Litchfield (North Litchfield, IL)
- North Muddy (North Muddy, IL)
- North Okaw (North Okaw, IL)
- North Otter (North Otter, IL)
- North Palmyra (North Palmyra, IL)
- North Pekin (North Pekin, IL)
- North Riverside (North Riverside, IL)
- North Utica (North Utica, IL)
- Northbrook (Northbrook, IL)
- Northeast (Northeast, IL)
- Northern (Northern, IL)
- Northfield (Northfield, IL (Cook County - Village))
- Northfield (Northfield, IL (Cook County - Township))
- Northlake (Northlake, IL)
- Northville (Northville, IL)
- Norton (Norton, IL)
- Norwood (Norwood, IL)
- Norwood Park (Norwood Park, IL)
- Nunda (Nunda, IL)
O
- Oak Brook (Oak Brook, IL (DuPage County - Village))
- Oak Brook (Oak Brook, IL (Cook County - Village))
- Oak Forest (Oak Forest, IL)
- Oak Grove (Oak Grove, IL)
- Oak Lawn (Oak Lawn, IL)
- Oak Park (Oak Park, IL (Cook County - Village))
- Oak Park (Oak Park, IL (Cook County - Township))
- Oak Run (Oak Run, IL)
- Oakbrook Terrace (Oakbrook Terrace, IL)
- Oakdale (Oakdale, IL (Washington County - Township))
- Oakdale (Oakdale, IL (Washington County - Village))
- Oakford (Oakford, IL)
- Oakland (Oakland, IL (Coles County - City))
- Oakley (Oakley, IL)
- Oakwood (Oakwood, IL (Vermilion County - Village))
- Oakwood (Oakwood, IL (Vermilion County - Township))
- Oakwood Hills (Oakwood Hills, IL)
- Oblong (Oblong, IL (Crawford County - Township))
- Oblong (Oblong, IL (Crawford County - Village))
- Oconee (Oconee, IL (Shelby County - Village))
- Oconee (Oconee, IL (Shelby County - Township))
- Odell (Odell, IL (Livingston County - Township))
- Odell (Odell, IL (Livingston County - Village))
- Odin (Odin, IL (Marion County - Village))
- Odin (Odin, IL (Marion County - Township))
- O'Fallon (O'Fallon, IL (St. Clair County - City))
- O'Fallon (O'Fallon, IL (St. Clair County - Township))
- Ogden (Ogden, IL (Champaign County - Township))
- Ogden (Ogden, IL (Champaign County - Village))
- Oglesby (Oglesby, IL)
- Ohio (Ohio, IL (Bureau County - Township))
- Ohio (Ohio, IL (Bureau County - Village))
- Ohio Grove (Ohio Grove, IL)
- Ohlman (Ohlman, IL)
- Okaw (Okaw, IL)
- Okawville (Okawville, IL (Washington County - Township))
- Okawville (Okawville, IL (Washington County - Village))
- Old Mill Creek (Old Mill Creek, IL)
- Old Ripley (Old Ripley, IL (Bond County - Village))
- Old Ripley (Old Ripley, IL (Bond County - Township))
- Old Shawneetown (Old Shawneetown, IL)
- Old Town (Old Town, IL)
- Olio (Olio, IL)
- Olive (Olive, IL)
- Olive Branch (Olive Branch, IL)
- Olivet (Olivet, IL)
- Olmsted (Olmsted, IL)
- Olney (Olney, IL (Richland County - City))
- Olney (Olney, IL (Richland County - Township))
- Olympia Fields (Olympia Fields, IL)
- Omaha (Omaha, IL (Gallatin County - Village))
- Omaha (Omaha, IL (Gallatin County - Township))
- Omega (Omega, IL)
- Omphghent (Omphghent, IL)
- Onarga (Onarga, IL (Iroquois County - Township))
- Onarga (Onarga, IL (Iroquois County - Village))
- Oneco (Oneco, IL)
- Oneida (Oneida, IL)
- Ontario (Ontario, IL)
- Opdyke (Opdyke, IL)
- Ophir (Ophir, IL)
- Oquawka (Oquawka, IL (Henderson County - Village))
- Oquawka (Oquawka, IL (Henderson County - Township))
- Ora (Ora, IL)
- Oran (Oran, IL)
- Orange (Orange, IL (Clark County - Township))
- Orange (Orange, IL (Knox County - Township))
- Orangeville (Orangeville, IL)
- Orchard (Orchard, IL)
- Oreana (Oreana, IL)
- Oregon (Oregon, IL)
- Oregon-Nashua (Oregon-Nashua, IL)
- Orel (Orel, IL)
- Orient (Orient, IL)
- Orion (Orion, IL (Fulton County - Township))
- Orion (Orion, IL (Henry County - Village))
- Orland (Orland, IL)
- Orland Hills (Orland Hills, IL)
- Orland Park (Orland Park, IL (Cook County - Village))
- Orland Park (Orland Park, IL (Will County - Village))
- Orvil (Orvil, IL)
- Osage (Osage, IL)
- Osceola (Osceola, IL)
- Osco (Osco, IL)
- Oskaloosa (Oskaloosa, IL)
- Oswego (Oswego, IL (Kendall County - Village))
- Oswego (Oswego, IL (Kendall County - Township))
- Otego (Otego, IL)
- Ottawa (Ottawa, IL (La Salle County - Township))
- Ottawa (Ottawa, IL (La Salle County - City))
- Otter Creek (Otter Creek, IL (La Salle County - Township))
- Otter Creek (Otter Creek, IL (Jersey County - Township))
- Otterville (Otterville, IL)
- Otto (Otto, IL)
- Owaneco (Owaneco, IL)
- Owego (Owego, IL)
- Owen (Owen, IL)
- Oxford (Oxford, IL)
P
- Paderborn (Paderborn, IL)
- Palatine (Palatine, IL (Cook County - Village))
- Palatine (Palatine, IL (Cook County - Township))
- Palatine (Palatine, IL (Lake County - Village))
- Palestine (Palestine, IL (Crawford County - Village))
- Palestine (Palestine, IL (Woodford County - Township))
- Palmer (Palmer, IL)
- Palmyra (Palmyra, IL (Lee County - Township))
- Palmyra (Palmyra, IL (Macoupin County - Village))
- Palos (Palos, IL)
- Palos Heights (Palos Heights, IL)
- Palos Hills (Palos Hills, IL)
- Palos Park (Palos Park, IL)
- Pana (Pana, IL (Shelby County - City))
- Pana (Pana, IL (Christian County - City))
- Pana (Pana, IL (Christian County - Township))
- Panama (Panama, IL (Montgomery County - Village))
- Panama (Panama, IL (Bond County - Village))
- Panola (Panola, IL (Woodford County - Township))
- Panther Creek (Panther Creek, IL)
- Papineau (Papineau, IL (Iroquois County - Township))
- Papineau (Papineau, IL (Iroquois County - Village))
- Paradise (Paradise, IL)
- Paris (Paris, IL (Edgar County - Township))
- Paris (Paris, IL (Edgar County - City))
- Park City (Park City, IL)
- Park Forest (Park Forest, IL (Cook County - Village))
- Park Forest (Park Forest, IL (Will County - Village))
- Park Ridge (Park Ridge, IL)
- Parker (Parker, IL)
- Parkersburg (Parkersburg, IL)
- Partridge (Partridge, IL)
- Patoka (Patoka, IL (Marion County - Village))
- Patoka (Patoka, IL (Marion County - Township))
- Patterson (Patterson, IL)
- Patton (Patton, IL)
- Paw Paw (Paw Paw, IL (DeKalb County - Township))
- Paw Paw (Paw Paw, IL (Lee County - Village))
- Pawnee (Pawnee, IL (Sangamon County - Village))
- Pawnee (Pawnee, IL (Sangamon County - Township))
- Paxton (Paxton, IL)
- Payson (Payson, IL (Adams County - Village))
- Payson (Payson, IL (Adams County - Township))
- Peach Orchard (Peach Orchard, IL)
- Pearl (Pearl, IL (Pike County - Village))
- Pearl (Pearl, IL (Pike County - Township))
- Pearl City (Pearl City, IL)
- Pecatonica (Pecatonica, IL (Winnebago County - Township))
- Pecatonica (Pecatonica, IL (Winnebago County - Village))
- Pekin (Pekin, IL (Peoria County - City))
- Pekin (Pekin, IL (Tazewell County - Township))
- Pekin (Pekin, IL (Tazewell County - City))
- Pella (Pella, IL)
- Pembroke (Pembroke, IL)
- Pendleton (Pendleton, IL)
- Penfield (Penfield, IL)
- Penn (Penn, IL (Shelby County - Township))
- Penn (Penn, IL (Stark County - Township))
- Pennsylvania (Pennsylvania, IL)
- Peoria (Peoria, IL)
- Peoria City (Peoria City, IL)
- Peoria Heights (Peoria Heights, IL (Peoria County - Village))
- Peoria Heights (Peoria Heights, IL (Woodford County - Village))
- Peoria Heights (Peoria Heights, IL (Tazewell County - Village))
- Peotone (Peotone, IL (Will County - Township))
- Peotone (Peotone, IL (Will County - Village))
- Percy (Percy, IL)
- Perry (Perry, IL (Pike County - Village))
- Perry (Perry, IL (Pike County - Township))
- Perryton (Perryton, IL)
- Persifer (Persifer, IL)
- Peru (Peru, IL (La Salle County - Township))
- Peru (Peru, IL (La Salle County - City))
- Pesotum (Pesotum, IL (Champaign County - Township))
- Pesotum (Pesotum, IL (Champaign County - Village))
- Petersburg (Petersburg, IL)
- Petty (Petty, IL)
- Phenix (Phenix, IL)
- Philadelphia (Philadelphia, IL)
- Phillips (Phillips, IL)
- Phillipstown (Phillipstown, IL)
- Philo (Philo, IL (Champaign County - Township))
- Philo (Philo, IL (Champaign County - Village))
- Phoenix (Phoenix, IL)
- Piasa (Piasa, IL)
- Pierce (Pierce, IL)
- Pierron (Pierron, IL (Bond County - Village))
- Pierron (Pierron, IL (Madison County - Village))
- Pigeon Grove (Pigeon Grove, IL)
- Pike (Pike, IL)
- Pilot (Pilot, IL (Vermilion County - Township))
- Pilot (Pilot, IL (Kankakee County - Township))
- Pilot Grove (Pilot Grove, IL)
- Pilot Knob (Pilot Knob, IL)
- Pin Oak (Pin Oak, IL)
- Pinckneyville (Pinckneyville, IL)
- Pine Creek (Pine Creek, IL)
- Pine Rock (Pine Rock, IL)
- Pingree Grove (Pingree Grove, IL)
- Piper City (Piper City, IL)
- Pistakee Highlands (Pistakee Highlands, IL)
- Pitman (Pitman, IL)
- Pittsburg (Pittsburg, IL)
- Pittsfield (Pittsfield, IL (Pike County - City))
- Pittsfield (Pittsfield, IL (Pike County - Township))
- Pixley (Pixley, IL)
- Plainfield (Plainfield, IL (Will County - Township))
- Plainfield (Plainfield, IL (Will County - Village))
- Plainfield (Plainfield, IL (Kendall County - Village))
- Plainville (Plainville, IL)
- Plano (Plano, IL)
- Plato (Plato, IL)
- Plattville (Plattville, IL)
- Pleasant (Pleasant, IL)
- Pleasant Grove (Pleasant Grove, IL)
- Pleasant Hill (Pleasant Hill, IL (Pike County - Village))
- Pleasant Hill (Pleasant Hill, IL (Pike County - Township))
- Pleasant Mound (Pleasant Mound, IL)
- Pleasant Plains (Pleasant Plains, IL)
- Pleasant Ridge (Pleasant Ridge, IL)
- Pleasant Vale (Pleasant Vale, IL)
- Pleasant Valley (Pleasant Valley, IL)
- Pleasant View (Pleasant View, IL)
- Plum Hill (Plum Hill, IL)
- Plymouth (Plymouth, IL (Hancock County - Village))
- Plymouth (Plymouth, IL (McDonough County - Village))
- Pocahontas (Pocahontas, IL)
- Point Pleasant (Point Pleasant, IL)
- Polk (Polk, IL)
- Polo (Polo, IL)
- Pomona (Pomona, IL)
- Pontiac (Pontiac, IL (Livingston County - Township))
- Pontiac (Pontiac, IL (Livingston County - City))
- Pontoon Beach (Pontoon Beach, IL)
- Pontoosuc (Pontoosuc, IL (Hancock County - Township))
- Pontoosuc (Pontoosuc, IL (Hancock County - Village))
- Poplar Grove (Poplar Grove, IL (Boone County - Township))
- Poplar Grove (Poplar Grove, IL (Boone County - Village))
- Port Barrington (Port Barrington, IL (Lake County - Village))
- Port Barrington (Port Barrington, IL (McHenry County - Village))
- Port Byron (Port Byron, IL (Rock Island County - Township))
- Port Byron (Port Byron, IL (Rock Island County - Village))
- Portland (Portland, IL)
- Posen (Posen, IL)
- Potomac (Potomac, IL)
- Prairie (Prairie, IL (Crawford County - Township))
- Prairie (Prairie, IL (Edgar County - Township))
- Prairie (Prairie, IL (Hancock County - Township))
- Prairie (Prairie, IL (Shelby County - Township))
- Prairie City (Prairie City, IL (McDonough County - Township))
- Prairie City (Prairie City, IL (McDonough County - Village))
- Prairie Creek (Prairie Creek, IL)
- Prairie Du Long (Prairie Du Long, IL)
- Prairie du Rocher (Prairie du Rocher, IL)
- Prairie Green (Prairie Green, IL)
- Prairie Grove (Prairie Grove, IL)
- Prairieton (Prairieton, IL)
- Preemption (Preemption, IL)
- Prestbury (Prestbury, IL)
- Preston (Preston, IL)
- Preston Heights (Preston Heights, IL)
- Princeton (Princeton, IL (Bureau County - Township))
- Princeton (Princeton, IL (Bureau County - City))
- Princeville (Princeville, IL (Peoria County - Village))
- Princeville (Princeville, IL (Peoria County - Township))
- Prophetstown (Prophetstown, IL (Whiteside County - City))
- Prophetstown (Prophetstown, IL (Whiteside County - Township))
- Prospect Heights (Prospect Heights, IL)
- Proviso (Proviso, IL)
- Pulaski (Pulaski, IL)
- Putman (Putman, IL)
Q
- Quarry (Quarry, IL)
- Quincy (Quincy, IL (Adams County - City))
- Quincy (Quincy, IL (Adams County - Township))
- Quiver (Quiver, IL)
R
- Raccoon (Raccoon, IL)
- Radnor (Radnor, IL)
- Radom (Radom, IL)
- Raleigh (Raleigh, IL (Saline County - Township))
- Raleigh (Raleigh, IL (Saline County - Village))
- Ramsey (Ramsey, IL (Fayette County - Township))
- Ramsey (Ramsey, IL (Fayette County - Village))
- Randolph (Randolph, IL)
- Rankin (Rankin, IL)
- Ransom (Ransom, IL)
- Rantoul (Rantoul, IL (Champaign County - Township))
- Rantoul (Rantoul, IL (Champaign County - Village))
- Rapids City (Rapids City, IL)
- Raritan (Raritan, IL (Henderson County - Village))
- Raritan (Raritan, IL (Henderson County - Township))
- Rawlins (Rawlins, IL)
- Raymond (Raymond, IL (Montgomery County - Village))
- Raymond (Raymond, IL (Montgomery County - Township))
- Raymond (Raymond, IL (Champaign County - Township))
- Reading (Reading, IL)
- Red Bud (Red Bud, IL)
- Reddick (Reddick, IL (Kankakee County - Village))
- Reddick (Reddick, IL (Livingston County - Village))
- Redmon (Redmon, IL)
- Reed (Reed, IL)
- Reynolds (Reynolds, IL (Rock Island County - Village))
- Reynolds (Reynolds, IL (Mercer County - Village))
- Reynolds (Reynolds, IL (Lee County - Township))
- Rice (Rice, IL)
- Rich (Rich, IL)
- Richfield (Richfield, IL)
- Richland (Richland, IL (Shelby County - Township))
- Richland (Richland, IL (La Salle County - Township))
- Richland (Richland, IL (Marshall County - Township))
- Richland Grove (Richland Grove, IL)
- Richmond (Richmond, IL (McHenry County - Village))
- Richmond (Richmond, IL (McHenry County - Township))
- Richton Park (Richton Park, IL)
- Richview (Richview, IL (Washington County - Township))
- Richview (Richview, IL (Washington County - Village))
- Richwood (Richwood, IL)
- Richwoods (Richwoods, IL)
- Ricks (Ricks, IL)
- Ridge (Ridge, IL)
- Ridge Farm (Ridge Farm, IL)
- Ridgeland (Ridgeland, IL)
- Ridgway (Ridgway, IL (Gallatin County - Village))
- Ridgway (Ridgway, IL (Gallatin County - Township))
- Ridott (Ridott, IL (Stephenson County - Village))
- Ridott (Ridott, IL (Stephenson County - Township))
- Riley (Riley, IL)
- Ringwood (Ringwood, IL)
- Rio (Rio, IL (Knox County - Township))
- Rio (Rio, IL (Knox County - Village))
- Ripley (Ripley, IL (Brown County - Township))
- River Forest (River Forest, IL (Cook County - Village))
- River Forest (River Forest, IL (Cook County - Township))
- River Grove (River Grove, IL)
- Riverdale (Riverdale, IL)
- Riverside (Riverside, IL (Cook County - Village))
- Riverside (Riverside, IL (Cook County - Township))
- Riverside (Riverside, IL (Adams County - Township))
- Riverton (Riverton, IL)
- Riverwoods (Riverwoods, IL)
- Rivoli (Rivoli, IL)
- Roanoke (Roanoke, IL (Woodford County - Village))
- Roanoke (Roanoke, IL (Woodford County - Township))
- Robbins (Robbins, IL)
- Roberts (Roberts, IL (Ford County - Village))
- Roberts (Roberts, IL (Marshall County - Township))
- Robinson (Robinson, IL (Crawford County - Township))
- Robinson (Robinson, IL (Crawford County - City))
- Rochelle (Rochelle, IL (Lee County - City))
- Rochelle (Rochelle, IL (Ogle County - City))
- Rochester (Rochester, IL (Sangamon County - Village))
- Rochester (Rochester, IL (Sangamon County - Township))
- Rock City (Rock City, IL)
- Rock Creek (Rock Creek, IL)
- Rock Creek-Lima (Rock Creek-Lima, IL)
- Rock Falls (Rock Falls, IL)
- Rock Grove (Rock Grove, IL)
- Rock Island (Rock Island, IL (Rock Island County - Township))
- Rock Island (Rock Island, IL (Rock Island County - City))
- Rock Island Arsenal (Rock Island Arsenal, IL)
- Rock Run (Rock Run, IL)
- Rockbridge (Rockbridge, IL (Greene County - Village))
- Rockbridge (Rockbridge, IL (Greene County - Township))
- Rockdale (Rockdale, IL)
- Rockford (Rockford, IL (Winnebago County - Township))
- Rockford (Rockford, IL (Winnebago County - City))
- Rockton (Rockton, IL (Winnebago County - Township))
- Rockton (Rockton, IL (Winnebago County - Village))
- Rockvale (Rockvale, IL)
- Rockville (Rockville, IL)
- Rocky Run (Rocky Run, IL)
- Rogers (Rogers, IL)
- Rolling Meadows (Rolling Meadows, IL)
- Rome (Rome, IL (Jefferson County - Township))
- Rome (Rome, IL (Peoria County - Census Designated Place))
- Romeoville (Romeoville, IL)
- Roodhouse (Roodhouse, IL (Greene County - City))
- Roodhouse (Roodhouse, IL (Greene County - Township))
- Rooks Creek (Rooks Creek, IL)
- Rosamond (Rosamond, IL)
- Roscoe (Roscoe, IL (Winnebago County - Township))
- Roscoe (Roscoe, IL (Winnebago County - Village))
- Rose (Rose, IL)
- Rose Hill (Rose Hill, IL)
- Rosedale (Rosedale, IL)
- Rosefield (Rosefield, IL)
- Roselle (Roselle, IL (DuPage County - Village))
- Roselle (Roselle, IL (Cook County - Village))
- Rosemont (Rosemont, IL)
- Roseville (Roseville, IL (Warren County - Village))
- Roseville (Roseville, IL (Warren County - Township))
- Rosewood Heights (Rosewood Heights, IL)
- Rosiclare (Rosiclare, IL)
- Ross (Ross, IL (Edgar County - Township))
- Ross (Ross, IL (Vermilion County - Township))
- Rossville (Rossville, IL)
- Round Grove (Round Grove, IL)
- Round Lake (Round Lake, IL)
- Round Lake Beach (Round Lake Beach, IL)
- Round Lake Heights (Round Lake Heights, IL)
- Round Lake Park (Round Lake Park, IL)
- Rountree (Rountree, IL)
- Roxana (Roxana, IL)
- Royal (Royal, IL)
- Royal Lakes (Royal Lakes, IL)
- Royalton (Royalton, IL)
- Rubicon (Rubicon, IL)
- Ruma (Ruma, IL)
- Rural (Rural, IL (Shelby County - Township))
- Rural (Rural, IL (Rock Island County - Township))
- Rush (Rush, IL)
- Rushville (Rushville, IL (Schuyler County - Township))
- Rushville (Rushville, IL (Schuyler County - City))
- Russell (Russell, IL)
- Rutland (Rutland, IL (Kane County - Township))
- Rutland (Rutland, IL (La Salle County - Township))
- Rutland (Rutland, IL (La Salle County - Village))
- Rutledge (Rutledge, IL)
- Ruyle (Ruyle, IL)
S
- Sadorus (Sadorus, IL (Champaign County - Township))
- Sadorus (Sadorus, IL (Champaign County - Village))
- Salem (Salem, IL (Carroll County - Township))
- Salem (Salem, IL (Marion County - City))
- Salem (Salem, IL (Marion County - Township))
- Salem (Salem, IL (Knox County - Township))
- Salina (Salina, IL)
- Saline (Saline, IL)
- Salt Creek (Salt Creek, IL)
- Sammons Point (Sammons Point, IL)
- San Jose (San Jose, IL (Mason County - Village))
- San Jose (San Jose, IL (Logan County - Village))
- Sand Prairie (Sand Prairie, IL)
- Sand Ridge (Sand Ridge, IL)
- Sandoval (Sandoval, IL (Marion County - Village))
- Sandoval (Sandoval, IL (Marion County - Township))
- Sandwich (Sandwich, IL (DeKalb County - Township))
- Sandwich (Sandwich, IL (DeKalb County - City))
- Sandwich (Sandwich, IL (Kendall County - City))
- Sangamon (Sangamon, IL)
- Sangamon Valley (Sangamon Valley, IL)
- Santa Anna (Santa Anna, IL)
- Santa Fe (Santa Fe, IL)
- Saratoga (Saratoga, IL (Grundy County - Township))
- Saratoga (Saratoga, IL (Marshall County - Township))
- Sargent (Sargent, IL)
- Sauget (Sauget, IL)
- Sauk Village (Sauk Village, IL (Cook County - Village))
- Sauk Village (Sauk Village, IL (Will County - Village))
- Saunemin (Saunemin, IL (Livingston County - Township))
- Saunemin (Saunemin, IL (Livingston County - Village))
- Savanna (Savanna, IL (Carroll County - Township))
- Savanna (Savanna, IL (Carroll County - City))
- Savoy (Savoy, IL)
- Sawyerville (Sawyerville, IL)
- Saybrook (Saybrook, IL)
- Scales Mound (Scales Mound, IL (Jo Daviess County - Village))
- Scales Mound (Scales Mound, IL (Jo Daviess County - Township))
- Schaumburg (Schaumburg, IL (DuPage County - Village))
- Schaumburg (Schaumburg, IL (Cook County - Village))
- Schaumburg (Schaumburg, IL (Cook County - Township))
- Schiller Park (Schiller Park, IL)
- Schram City (Schram City, IL)
- Sciota (Sciota, IL (McDonough County - Township))
- Sciota (Sciota, IL (McDonough County - Village))
- Scotland (Scotland, IL)
- Scott (Scott, IL (Champaign County - Township))
- Scott (Scott, IL (Ogle County - Township))
- Scott AFB (Scott AFB, IL)
- Scottville (Scottville, IL (Macoupin County - Township))
- Seaton (Seaton, IL)
- Seatonville (Seatonville, IL)
- Secor (Secor, IL)
- Sefton (Sefton, IL)
- Selby (Selby, IL)
- Seminary (Seminary, IL)
- Senachwine (Senachwine, IL)
- Seneca (Seneca, IL (Grundy County - Village))
- Seneca (Seneca, IL (McHenry County - Township))
- Seneca (Seneca, IL (La Salle County - Village))
- Serena (Serena, IL)
- Sesser (Sesser, IL)
- Seven Hickory (Seven Hickory, IL)
- Seward (Seward, IL (Kendall County - Township))
- Seward (Seward, IL (Winnebago County - Township))
- Seymour (Seymour, IL)
- Shabbona (Shabbona, IL (DeKalb County - Township))
- Shabbona (Shabbona, IL (DeKalb County - Village))
- Shafter (Shafter, IL)
- Shannon (Shannon, IL)
- Sharon (Sharon, IL)
- Shawnee (Shawnee, IL)
- Shawneetown (Shawneetown, IL)
- Shaws Point (Shaws Point, IL)
- Sheffield (Sheffield, IL)
- Shelbyville (Shelbyville, IL (Shelby County - City))
- Shelbyville (Shelbyville, IL (Shelby County - Township))
- Sheldon (Sheldon, IL (Iroquois County - Township))
- Sheldon (Sheldon, IL (Iroquois County - Village))
- Sheridan (Sheridan, IL (Logan County - Township))
- Sheridan (Sheridan, IL (La Salle County - Village))
- Sherman (Sherman, IL (Mason County - Township))
- Sherman (Sherman, IL (Sangamon County - Village))
- Sherrard (Sherrard, IL)
- Shields (Shields, IL)
- Shiloh (Shiloh, IL (Edgar County - Township))
- Shiloh (Shiloh, IL (Jefferson County - Township))
- Shiloh (Shiloh, IL (St. Clair County - Village))
- Shiloh Valley (Shiloh Valley, IL)
- Shipman (Shipman, IL (Macoupin County - Town))
- Shipman (Shipman, IL (Macoupin County - Township))
- Shirland (Shirland, IL)
- Shoal Creek (Shoal Creek, IL)
- Shorewood (Shorewood, IL)
- Shumway (Shumway, IL)
- Sibley (Sibley, IL)
- Sidell (Sidell, IL (Vermilion County - Village))
- Sidell (Sidell, IL (Vermilion County - Township))
- Sidney (Sidney, IL (Champaign County - Township))
- Sidney (Sidney, IL (Champaign County - Village))
- Sigel (Sigel, IL (Shelby County - Town))
- Sigel (Sigel, IL (Shelby County - Township))
- Silver Creek (Silver Creek, IL)
- Silvis (Silvis, IL)
- Simpson (Simpson, IL)
- Sims (Sims, IL)
- Six Mile (Six Mile, IL)
- Skokie (Skokie, IL)
- Sleepy Hollow (Sleepy Hollow, IL)
- Smallwood (Smallwood, IL)
- Smithboro (Smithboro, IL)
- Smithfield (Smithfield, IL)
- Smithton (Smithton, IL (St. Clair County - Village))
- Smithton (Smithton, IL (St. Clair County - Township))
- Somer (Somer, IL)
- Somerset (Somerset, IL)
- Somonauk (Somonauk, IL (DeKalb County - Township))
- Somonauk (Somonauk, IL (DeKalb County - Village))
- Somonauk (Somonauk, IL (La Salle County - Village))
- Songer (Songer, IL)
- Sonora (Sonora, IL)
- Sorento (Sorento, IL)
- South Barrington (South Barrington, IL)
- South Beloit (South Beloit, IL)
- South Chicago Heights (South Chicago Heights, IL)
- South Crouch (South Crouch, IL)
- South Dixon (South Dixon, IL)
- South Elgin (South Elgin, IL)
- South Fillmore (South Fillmore, IL)
- South Fork (South Fork, IL)
- South Grove (South Grove, IL)
- South Holland (South Holland, IL)
- South Homer (South Homer, IL)
- South Hurricane (South Hurricane, IL)
- South Jacksonville (South Jacksonville, IL)
- South Litchfield (South Litchfield, IL)
- South Macon (South Macon, IL)
- South Moline (South Moline, IL)
- South Muddy (South Muddy, IL)
- South Ottawa (South Ottawa, IL)
- South Otter (South Otter, IL)
- South Palmyra (South Palmyra, IL)
- South Pekin (South Pekin, IL)
- South Rock Island (South Rock Island, IL)
- South Ross (South Ross, IL)
- South Roxana (South Roxana, IL)
- South Wheatland (South Wheatland, IL)
- South Wilmington (South Wilmington, IL)
- Southern View (Southern View, IL)
- Southwest (Southwest, IL)
- Sparland (Sparland, IL)
- Sparta (Sparta, IL (Randolph County - City))
- Sparta (Sparta, IL (Knox County - Township))
- Spaulding (Spaulding, IL)
- Spillertown (Spillertown, IL)
- Spring (Spring, IL)
- Spring Bay (Spring Bay, IL (Woodford County - Village))
- Spring Bay (Spring Bay, IL (Woodford County - Township))
- Spring Creek (Spring Creek, IL)
- Spring Garden (Spring Garden, IL)
- Spring Grove (Spring Grove, IL (McHenry County - Village))
- Spring Grove (Spring Grove, IL (Warren County - Township))
- Spring Lake (Spring Lake, IL)
- Spring Point (Spring Point, IL)
- Spring Valley (Spring Valley, IL)
- Springerton (Springerton, IL)
- Springfield (Springfield, IL (Sangamon County - City))
- Springfield (Springfield, IL (Sangamon County - Township))
- Squaw Grove (Squaw Grove, IL)
- St. Albans (St. Albans, IL)
- St. Anne (St. Anne, IL (Kankakee County - Township))
- St. Anne (St. Anne, IL (Kankakee County - Village))
- St. Augustine (St. Augustine, IL)
- St. Charles (St. Charles, IL (DuPage County - City))
- St. Charles (St. Charles, IL (Kane County - City))
- St. Charles (St. Charles, IL (Kane County - Township))
- St. Clair (St. Clair, IL)
- St. David (St. David, IL)
- St. Elmo (St. Elmo, IL)
- St. Francis (St. Francis, IL)
- St. Francisville (St. Francisville, IL)
- St. Jacob (St. Jacob, IL (Madison County - Township))
- St. Jacob (St. Jacob, IL (Madison County - Village))
- St. Johns (St. Johns, IL)
- St. Joseph (St. Joseph, IL (Champaign County - Township))
- St. Joseph (St. Joseph, IL (Champaign County - Village))
- St. Libory (St. Libory, IL)
- St. Mary (St. Mary, IL)
- St. Peter (St. Peter, IL)
- St. Rose (St. Rose, IL)
- Standard (Standard, IL)
- Standard City (Standard City, IL)
- Stanford (Stanford, IL (Clay County - Township))
- Stanford (Stanford, IL (McLean County - Village))
- Stanton (Stanton, IL)
- Staunton (Staunton, IL (Macoupin County - City))
- Staunton (Staunton, IL (Macoupin County - Township))
- Ste. Marie (Ste. Marie, IL (Jasper County - Township))
- Ste. Marie (Ste. Marie, IL (Jasper County - Village))
- Steeleville (Steeleville, IL)
- Steger (Steger, IL (Cook County - Village))
- Steger (Steger, IL (Will County - Village))
- Sterling (Sterling, IL (Whiteside County - City))
- Sterling (Sterling, IL (Whiteside County - Township))
- Steuben (Steuben, IL)
- Stevenson (Stevenson, IL)
- Steward (Steward, IL)
- Stewardson (Stewardson, IL)
- Stickney (Stickney, IL (Cook County - Village))
- Stickney (Stickney, IL (Cook County - Township))
- Stillman Valley (Stillman Valley, IL)
- Stites (Stites, IL)
- Stockland (Stockland, IL)
- Stockton (Stockton, IL (Jo Daviess County - Village))
- Stockton (Stockton, IL (Jo Daviess County - Township))
- Stone Park (Stone Park, IL)
- Stonefort (Stonefort, IL (Saline County - Township))
- Stonefort (Stonefort, IL (Saline County - Village))
- Stonefort (Stonefort, IL (Williamson County - Village))
- Stonington (Stonington, IL (Christian County - Village))
- Stonington (Stonington, IL (Christian County - Township))
- Stookey (Stookey, IL)
- Stoy (Stoy, IL)
- Strasburg (Strasburg, IL)
- Stratton (Stratton, IL)
- Strawn (Strawn, IL)
- Streamwood (Streamwood, IL)
- Streator (Streator, IL (La Salle County - City))
- Streator (Streator, IL (Livingston County - City))
- Stronghurst (Stronghurst, IL (Henderson County - Village))
- Stronghurst (Stronghurst, IL (Henderson County - Township))
- Sublette (Sublette, IL (Lee County - Township))
- Sublette (Sublette, IL (Lee County - Village))
- Suez (Suez, IL)
- Sugar Creek (Sugar Creek, IL)
- Sugar Grove (Sugar Grove, IL (Kane County - Village))
- Sugar Grove (Sugar Grove, IL (Kane County - Township))
- Sugar Loaf (Sugar Loaf, IL)
- Sullivan (Sullivan, IL (Moultrie County - City))
- Sullivan (Sullivan, IL (Moultrie County - Township))
- Sullivan (Sullivan, IL (Livingston County - Township))
- Sullivant (Sullivant, IL)
- Summerfield (Summerfield, IL)
- Summit (Summit, IL (Cook County - Village))
- Summit (Summit, IL (Effingham County - Township))
- Sumner (Sumner, IL (Lawrence County - City))
- Sumner (Sumner, IL (Warren County - Township))
- Sumner (Sumner, IL (Kankakee County - Township))
- Sumpter (Sumpter, IL)
- Sun River Terrace (Sun River Terrace, IL)
- Sunbury (Sunbury, IL)
- Swan (Swan, IL)
- Swansea (Swansea, IL)
- Sycamore (Sycamore, IL (DeKalb County - Township))
- Sycamore (Sycamore, IL (DeKalb County - City))
- Symerton (Symerton, IL)
- Symmes (Symmes, IL)
T
- Table Grove (Table Grove, IL)
- Talkington (Talkington, IL)
- Tallula (Tallula, IL)
- Tamalco (Tamalco, IL)
- Tamaroa (Tamaroa, IL)
- Tamms (Tamms, IL)
- Tampico (Tampico, IL (Whiteside County - Village))
- Tampico (Tampico, IL (Whiteside County - Township))
- Tate (Tate, IL)
- Taylor (Taylor, IL)
- Taylor Springs (Taylor Springs, IL)
- Taylorville (Taylorville, IL (Christian County - City))
- Taylorville (Taylorville, IL (Christian County - Township))
- Tennessee (Tennessee, IL (McDonough County - Township))
- Tennessee (Tennessee, IL (McDonough County - Village))
- Teutopolis (Teutopolis, IL (Effingham County - Village))
- Teutopolis (Teutopolis, IL (Effingham County - Township))
- Texas (Texas, IL)
- Thawville (Thawville, IL)
- Thayer (Thayer, IL)
- The Galena Territory (The Galena Territory, IL)
- Thebes (Thebes, IL)
- Third Lake (Third Lake, IL)
- Thomasboro (Thomasboro, IL)
- Thompson (Thompson, IL)
- Thompsonville (Thompsonville, IL)
- Thomson (Thomson, IL)
- Thornton (Thornton, IL (Cook County - Village))
- Thornton (Thornton, IL (Cook County - Township))
- Tilden (Tilden, IL)
- Tilton (Tilton, IL)
- Timber (Timber, IL)
- Timberlane (Timberlane, IL)
- Tinley Park (Tinley Park, IL (Cook County - Village))
- Tinley Park (Tinley Park, IL (Will County - Village))
- Tiskilwa (Tiskilwa, IL)
- Todds Point (Todds Point, IL)
- Toledo (Toledo, IL)
- Tolono (Tolono, IL (Champaign County - Township))
- Tolono (Tolono, IL (Champaign County - Village))
- Toluca (Toluca, IL)
- Tompkins (Tompkins, IL)
- Tonica (Tonica, IL)
- Tonti (Tonti, IL)
- Topeka (Topeka, IL)
- Toulon (Toulon, IL (Stark County - Township))
- Toulon (Toulon, IL (Stark County - City))
- Tovey (Tovey, IL)
- Towanda (Towanda, IL (McLean County - Village))
- Towanda (Towanda, IL (McLean County - Township))
- Tower Hill (Tower Hill, IL (Shelby County - Village))
- Tower Hill (Tower Hill, IL (Shelby County - Township))
- Tower Lakes (Tower Lakes, IL)
- Tremont (Tremont, IL (Tazewell County - Township))
- Tremont (Tremont, IL (Tazewell County - Village))
- Trenton (Trenton, IL)
- Trivoli (Trivoli, IL)
- Trout Valley (Trout Valley, IL)
- Troy (Troy, IL (Will County - Township))
- Troy (Troy, IL (Madison County - City))
- Troy Grove (Troy Grove, IL (La Salle County - Township))
- Troy Grove (Troy Grove, IL (La Salle County - Village))
- Truro (Truro, IL)
- Tunbridge (Tunbridge, IL)
- Tuscola (Tuscola, IL (Douglas County - Township))
- Tuscola (Tuscola, IL (Douglas County - City))
- Twigg (Twigg, IL)
- Twin Grove (Twin Grove, IL)
- Tyrone (Tyrone, IL)
U
- Ullin (Ullin, IL)
- Union (Union, IL (Fulton County - Township))
- Union (Union, IL (Cumberland County - Township))
- Union (Union, IL (McHenry County - Village))
- Union (Union, IL (Effingham County - Township))
- Union (Union, IL (Livingston County - Township))
- Union Grove (Union Grove, IL)
- Union Hill (Union Hill, IL)
- Unity (Unity, IL)
- University Park (University Park, IL (Cook County - Village))
- University Park (University Park, IL (Will County - Village))
- Urbana (Urbana, IL (Champaign County - Township))
- Urbana (Urbana, IL (Champaign County - City))
- Ursa (Ursa, IL (Adams County - Village))
- Ursa (Ursa, IL (Adams County - Township))
- Ustick (Ustick, IL)
- Utica (Utica, IL)
V
- Valier (Valier, IL)
- Valley (Valley, IL)
- Valmeyer (Valmeyer, IL)
- Vance (Vance, IL)
- Vandalia (Vandalia, IL (Fayette County - Township))
- Vandalia (Vandalia, IL (Fayette County - City))
- Varna (Varna, IL)
- Venedy (Venedy, IL (Washington County - Township))
- Venedy (Venedy, IL (Washington County - Village))
- Venetian Village (Venetian Village, IL)
- Venice (Venice, IL (Madison County - Township))
- Venice (Venice, IL (Madison County - City))
- Vergennes (Vergennes, IL (Jackson County - Village))
- Vergennes (Vergennes, IL (Jackson County - Township))
- Vermilion (Vermilion, IL)
- Vermillion (Vermillion, IL)
- Vermont (Vermont, IL (Fulton County - Village))
- Vermont (Vermont, IL (Fulton County - Township))
- Vernon (Vernon, IL (Marion County - Village))
- Vernon (Vernon, IL (Lake County - Township))
- Vernon Hills (Vernon Hills, IL)
- Verona (Verona, IL)
- Versailles (Versailles, IL (Brown County - Village))
- Versailles (Versailles, IL (Brown County - Township))
- Victor (Victor, IL)
- Victoria (Victoria, IL (Knox County - Township))
- Victoria (Victoria, IL (Knox County - Village))
- Vienna (Vienna, IL (Johnson County - City))
- Vienna (Vienna, IL (Grundy County - Township))
- Villa Grove (Villa Grove, IL)
- Villa Park (Villa Park, IL)
- Vinegar Hill (Vinegar Hill, IL)
- Viola (Viola, IL (Mercer County - Village))
- Viola (Viola, IL (Lee County - Township))
- Virden (Virden, IL (Macoupin County - City))
- Virden (Virden, IL (Macoupin County - Township))
- Virden (Virden, IL (Sangamon County - City))
- Virgil (Virgil, IL (Kane County - Village))
- Virgil (Virgil, IL (Kane County - Township))
- Virginia (Virginia, IL (Cass County - City))
- Virginia (Virginia, IL (Cass County - Township))
- Volo (Volo, IL)
W
- Wabash (Wabash, IL)
- Waddams (Waddams, IL)
- Wade (Wade, IL (Jasper County - Township))
- Wade (Wade, IL (Clinton County - Township))
- Wadsworth (Wadsworth, IL)
- Waggoner (Waggoner, IL)
- Waldo (Waldo, IL)
- Walker (Walker, IL)
- Wall (Wall, IL)
- Wallace (Wallace, IL)
- Walnut (Walnut, IL (Bureau County - Township))
- Walnut (Walnut, IL (Bureau County - Village))
- Walnut Grove (Walnut Grove, IL (Knox County - Township))
- Walnut Grove (Walnut Grove, IL (McDonough County - Township))
- Walnut Hill (Walnut Hill, IL)
- Walshville (Walshville, IL (Montgomery County - Township))
- Waltham (Waltham, IL)
- Waltonville (Waltonville, IL)
- Wamac (Wamac, IL (Washington County - City))
- Wamac (Wamac, IL (Marion County - City))
- Wamac (Wamac, IL (Clinton County - City))
- Wapella (Wapella, IL (De Witt County - Village))
- Wapella (Wapella, IL (De Witt County - Township))
- Wards Grove (Wards Grove, IL)
- Warren (Warren, IL (Jo Daviess County - Village))
- Warren (Warren, IL (Jo Daviess County - Township))
- Warren (Warren, IL (Lake County - Township))
- Warrensburg (Warrensburg, IL)
- Warrenville (Warrenville, IL)
- Warsaw (Warsaw, IL (Hancock County - Township))
- Warsaw (Warsaw, IL (Hancock County - City))
- Washburn (Washburn, IL (Marshall County - Village))
- Washburn (Washburn, IL (Woodford County - Village))
- Washington (Washington, IL (Carroll County - Township))
- Washington (Washington, IL (Will County - Township))
- Washington (Washington, IL (Tazewell County - Township))
- Washington (Washington, IL (Tazewell County - City))
- Washington Park (Washington Park, IL)
- Wataga (Wataga, IL)
- Waterford (Waterford, IL)
- Waterloo (Waterloo, IL)
- Waterman (Waterman, IL)
- Watseka (Watseka, IL)
- Watson (Watson, IL (Effingham County - Village))
- Watson (Watson, IL (Effingham County - Township))
- Wauconda (Wauconda, IL (Lake County - Village))
- Wauconda (Wauconda, IL (Lake County - Township))
- Waukegan (Waukegan, IL (Lake County - City))
- Waukegan (Waukegan, IL (Lake County - Township))
- Wauponsee (Wauponsee, IL)
- Waverly (Waverly, IL)
- Wayne (Wayne, IL (DuPage County - Village))
- Wayne (Wayne, IL (DuPage County - Township))
- Wayne (Wayne, IL (Kane County - Village))
- Wayne City (Wayne City, IL)
- Waynesville (Waynesville, IL (De Witt County - Village))
- Waynesville (Waynesville, IL (De Witt County - Township))
- Webber (Webber, IL)
- Weldon (Weldon, IL)
- Weller (Weller, IL)
- Wellington (Wellington, IL)
- Wenona (Wenona, IL (La Salle County - City))
- Wenona (Wenona, IL (Marshall County - City))
- Wenonah (Wenonah, IL)
- Wesley (Wesley, IL)
- West (West, IL (McLean County - Township))
- West (West, IL (Effingham County - Township))
- West Brooklyn (West Brooklyn, IL)
- West Chicago (West Chicago, IL)
- West City (West City, IL)
- West Deerfield (West Deerfield, IL)
- West Dundee (West Dundee, IL)
- West Frankfort (West Frankfort, IL)
- West Galena (West Galena, IL)
- West Jersey (West Jersey, IL)
- West Lincoln (West Lincoln, IL)
- West Peoria (West Peoria, IL (Peoria County - City))
- West Peoria (West Peoria, IL (Peoria County - Township))
- West Point (West Point, IL (Hancock County - Village))
- West Point (West Point, IL (Stephenson County - Township))
- West Salem (West Salem, IL)
- West Union (West Union, IL)
- West York (West York, IL)
- Westchester (Westchester, IL)
- Western (Western, IL)
- Western Mound (Western Mound, IL)
- Western Springs (Western Springs, IL)
- Westervelt (Westervelt, IL)
- Westfield (Westfield, IL (Clark County - Township))
- Westfield (Westfield, IL (Clark County - Village))
- Westfield (Westfield, IL (Bureau County - Township))
- Westmont (Westmont, IL)
- Westville (Westville, IL)
- Wethersfield (Wethersfield, IL)
- Wheatfield (Wheatfield, IL)
- Wheatland (Wheatland, IL (Fayette County - Township))
- Wheatland (Wheatland, IL (Will County - Township))
- Wheatland (Wheatland, IL (Bureau County - Township))
- Wheaton (Wheaton, IL)
- Wheeler (Wheeler, IL)
- Wheeling (Wheeling, IL (Cook County - Village))
- Wheeling (Wheeling, IL (Cook County - Township))
- Wheeling (Wheeling, IL (Lake County - Village))
- White City (White City, IL)
- White Hall (White Hall, IL (Greene County - City))
- White Hall (White Hall, IL (Greene County - Township))
- White Heath (White Heath, IL)
- White Oak (White Oak, IL)
- White Rock (White Rock, IL)
- Whiteash (Whiteash, IL)
- Whitefield (Whitefield, IL)
- Whitley (Whitley, IL)
- Whitmore (Whitmore, IL)
- Wilberton (Wilberton, IL)
- Wilcox (Wilcox, IL)
- Will (Will, IL)
- Williams (Williams, IL)
- Williamsfield (Williamsfield, IL)
- Williamson (Williamson, IL)
- Williamsville (Williamsville, IL)
- Willisville (Willisville, IL)
- Willow Branch (Willow Branch, IL)
- Willow Creek (Willow Creek, IL)
- Willow Hill (Willow Hill, IL (Jasper County - Township))
- Willow Hill (Willow Hill, IL (Jasper County - Village))
- Willow Springs (Willow Springs, IL (DuPage County - Village))
- Willow Springs (Willow Springs, IL (Cook County - Village))
- Willowbrook (Willowbrook, IL (DuPage County - Village))
- Willowbrook (Willowbrook, IL (Will County - Census Designated Place))
- Wilmette (Wilmette, IL)
- Wilmington (Wilmington, IL (Will County - Township))
- Wilmington (Wilmington, IL (Will County - City))
- Wilson (Wilson, IL)
- Wilsonville (Wilsonville, IL)
- Wilton (Wilton, IL)
- Winchester (Winchester, IL)
- Windsor (Windsor, IL (Shelby County - City))
- Windsor (Windsor, IL (Shelby County - Township))
- Windsor (Windsor, IL (Mercer County - Village))
- Winfield (Winfield, IL (DuPage County - Village))
- Winfield (Winfield, IL (DuPage County - Township))
- Winnebago (Winnebago, IL (Winnebago County - Township))
- Winnebago (Winnebago, IL (Winnebago County - Village))
- Winnetka (Winnetka, IL)
- Winslow (Winslow, IL (Stephenson County - Village))
- Winslow (Winslow, IL (Stephenson County - Township))
- Winthrop Harbor (Winthrop Harbor, IL)
- Witt (Witt, IL (Montgomery County - City))
- Witt (Witt, IL (Montgomery County - Township))
- Wonder Lake (Wonder Lake, IL)
- Wood Dale (Wood Dale, IL)
- Wood River (Wood River, IL (Madison County - Township))
- Wood River (Wood River, IL (Madison County - City))
- Woodbine (Woodbine, IL)
- Woodbury (Woodbury, IL)
- Woodhull (Woodhull, IL)
- Woodland (Woodland, IL (Carroll County - Township))
- Woodland (Woodland, IL (Iroquois County - Village))
- Woodland (Woodland, IL (Fulton County - Township))
- Woodlawn (Woodlawn, IL)
- Woodridge (Woodridge, IL (DuPage County - Village))
- Woodridge (Woodridge, IL (Cook County - Village))
- Woodridge (Woodridge, IL (Will County - Village))
- Woodside (Woodside, IL)
- Woodson (Woodson, IL)
- Woodstock (Woodstock, IL (Schuyler County - Township))
- Woodstock (Woodstock, IL (McHenry County - City))
- Woosung (Woosung, IL)
- Worden (Worden, IL)
- Worth (Worth, IL (Cook County - Village))
- Worth (Worth, IL (Cook County - Township))
- Worth (Worth, IL (Woodford County - Township))
- Wrights (Wrights, IL)
- Wyanet (Wyanet, IL (Bureau County - Township))
- Wyanet (Wyanet, IL (Bureau County - Village))
- Wyoming (Wyoming, IL (Lee County - Township))
- Wyoming (Wyoming, IL (Stark County - City))
- Wysox (Wysox, IL)
- Wythe (Wythe, IL)
X
Y
- Yates (Yates, IL)
- Yates City (Yates City, IL)
- Yellowhead (Yellowhead, IL)
- York (York, IL (Carroll County - Township))
- York (York, IL (Clark County - Township))
- York (York, IL (DuPage County - Township))
- Yorktown (Yorktown, IL)
- Yorkville (Yorkville, IL)
- Young America (Young America, IL)
- Young Hickory (Young Hickory, IL)