- Cabery
- Cache
- Cahokia
- Cahokia
- Cairo
- Caledonia Township
- Caledonia
- Calumet
- Calumet City
- Calumet Park
- Camargo
- Camargo Township
- Cambria
- Cambridge
- Cambridge Township
- Camp Point
- Camp Point Township
- Campton
- Campton Hills
- Candlewick Lake
- Canteen
- Canton township
- Canton
- Cantrall
- Capital
- Capron
- Carbon Cliff
- Carbondale
- Carbondale
- Carbondale Township
- Carlin
- Carlinville township
- Carlinville
- Carlock
- Carlyle township
- Carlyle
- Carmi
- Carmi township
- Carol Stream
- Carpentersville
- Carrier Mills
- Carrier Mills Township
- Carrigan
- Carroll
- Carrollton
- Carrollton Township
- Carterville
- Carterville Precinct
- Carthage Township
- Carthage
- Cartwright
- Cary
- Casey
- Casey Township
- Caseyville township
- Caseyville
- Casner
- Catlin
- Catlin Township
- Cave
- Cave-In-Rock
- Cave-In-Rock Precinct
- Cazenovia
- Cedar
- Central
- Central City
- Centralia Township
- Centralia
- Centralia
- Centreville
- Centreville Township
- Cerro Gordo
- Cerro Gordo Township
- Chalmers
- Champaign
- Champaign City
- Chandlerville township
- Chandlerville
- Channahon Township
- Channahon
- Channel Lake
- Chapin
- Chapin precinct
- Charleston
- Charleston township
- Chatham Township
- Chatham
- Chatsworth
- Chatsworth township
- Chebanse
- Chebanse
- Chemung
- Chemung township
- Cheney's Grove
- Chenoa
- Chenoa Township
- Cherry Grove-Shannon
- Cherry Valley
- Cherry Valley
- Cherry Valley Township
- Chester
- Chester Precinct
- Chesterfield Township
- Chicago
- Chicago Heights
- Chicago Ridge
- Chillicothe township
- Chillicothe
- Chouteau
- Chrisman
- Christopher
- Cicero
- Cincinnati
- Cisne
- Cissna Park
- Clarendon Hills
- Clarksburg
- Clay City
- Clay City township
- Clayton Township
- Clayton
- Clear Lake Township
- Clear Lake
- Cleveland
- Clifton
- Clinton
- Clinton
- Clintonia
- Clover
- Clyde
- Coal City
- Coal Valley
- Coal Valley
- Cobden
- Coe
- Coffeen
- Colchester
- Colchester Township
- Colfax
- Colfax
- Collinsville
- Collinsville Township
- Coloma
- Colona
- Colona Township
- Colp
- Columbia
- Compton
- Concord
- Concord
- Concord
- Concord
- Concord precinct
- Copley
- Coral Township
- Cordova
- Cordova Township
- Corinth
- Cortland
- Cortland Township
- Cottage Hills
- Cotton Hill
- Coulterville Precinct
- Coulterville
- Coulterville
- Country Club Hills
- Countryside
- Cowden
- Coyne Center
- Crab Orchard Precinct
- Crainville
- Crater
- Creal Springs
- Creal Springs Precinct
- Creek
- Crescent
- Crescent City
- Crest Hill
- Creston
- Crestwood
- Crete Township
- Crete
- Creve Coeur
- Crooked Creek
- Cruger
- Crystal Lake
- Crystal Lawns
- Cuba
- Cuba
- Cullom
- Cunningham
- Curran Township
- Custer
- Custer Park
- Cutler Precinct
- Cutler
Illinois Homes for sale & real estate cities starting with "C"
Illinois Cities starting With "C"
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