- Canisteo
- Cooley
- Cort
- Country Acres Mobile Home Park
- Crawford Island
- Coin
- Caribou
- Clotho
- Charlesville
- Capstan Rock
- Central
- Conception
- Crescent Drive Mobile Village
- Colony Court
- Carnelian Junction
- Cerro Gordo
- Copas
- Childs
- Centerville
- Clyde
- Country Valley Mobile Home Park
- Crystal Spring
- Camp Island
- Canoe Island
- Castle Danger
- Center Island
- Charlies Island
- Clearwater Estates
- Country Village Mobile Estates
- Cramer