- Carleton
- Caro
- Carsonville
- Caseville
- Casnovia
- Caspian
- Cass City
- Cassopolis
- Cedar Springs
- Cement City
- Center Line
- Central Lake
- Channel Island
- Crump
- Charlevoix
- Cheboygan
- Chimney Corners Resort
- Crystal Lake Mobile Home Park
- Crystallia
- Chesaning
- Country Acres Mobile Home Park
- Crystal Mobile Home Park
- California
- Canada Shores
- Countryside Mobile Court
- Crystal Beach
- Clare
- Charlotte Landing
- Clarence Center
- Clarendon