- Coffee Island
- Cofield Corner
- Coke Oven Hollow
- Colburn
- Colburn
- Cold Springs
- Cold Springs
- Cole
- Colfax
- Colfax Mobile Home Park
- Collamer
- College Corner
- College Corner
- College Corner
- College Corner
- College Crest
- College Meadows
- Collegeville
- Collett
- Colliers Island
- Collingwood
- Collins
- Coloma
- Colonial Mobile Home Park
- Colonial Village
- Columbia
- Columbia City
- Columbus
- Commiskey
- Como