Place
- Calumet Park, Illinois2
- Campton Hills, Illinois1
- Carbon Hill, Illinois1
- Carol Stream, Illinois2
- Carpentersville, Illinois1
- Cary, Illinois2
- Channahon, Illinois1
- Channel Lake, Illinois1
- Chicago Heights, Illinois1
- Chicago Ridge, Illinois2
- Chicago, Illinois1
- Cicero, Illinois2
- Clarendon Hills, Illinois2
- Coal City, Illinois1
- Cook County, Illinois2
- Coral, Illinois1
- Country Club Hills, Illinois2
- Countryside, Illinois2
- Crest Hill, Illinois2
- Crestwood, Illinois2