- Citrus
- Citrus Gardens Mobile Home Park
- Citrus View
- City Terrace
- Clair
- Claraville
- Clare Mill
- Claremont
- Claribel
- Clarksburg
- Clarsona
- Claussenius
- Clay
- Clayton
- Clear Creek
- Clear Creek
- Clear Lake Keys
- Clear Lake Riviera
- Clearing House
- Clearlake Highlands
- Clearlake Park
- Clearwater
- Clement Junction
- Clements
- Cleone
- Clifton
- Cliftwood Mobile Home Park
- Clima
- Clint
- Clinton