Cities in State of Illinois, United States ( 474 )
- Breese, Illinois
- Bridgeview
- Broadview, Illinois
- Brookfield, Illinois
- Buffalo Grove
- Burbank, Illinois
- Burnham, Illinois
- Burr Ridge
- Bushnell, Illinois
- Byron, Illinois
- Cahokia
- Cairo, Illinois
- Calumet City
- Calumet Park
- Canton, Illinois
- Carbondale, Illinois
- Carlinville
- Carlyle, Illinois
- Carmi, Illinois
- Carol Stream
- Carpentersville
- Carterville, Illinois
- Carthage, Illinois
- Cary, Illinois
- Casey, Illinois
- Caseyville, Illinois
- Centralia, Illinois
- Centreville, Illinois
- Champaign
- Channahon
- Charleston, Illinois
- Chatham, Illinois
- Cherry Valley, Illinois
- Chester, Illinois
- Chicago
- Chicago Heights