- Cormorant Rock
- Corn Island
- Cove Ledge
- Cross Banks
- Cross Farm Hill
- Crow Island Rock
- Curzon Mill
- Cushing
- Camp Howe
- Canary Island
- Cold Spring
- Cooks Corner
- Cushman
- Camp Rowe
- Camp Warwick
- Cheapside
- Cold Spring
- Cooleyville
- Cadys Corners
- Camp Berkshire
- Camp Spruce Hill
- Camp Woronoak
- Cayenne
- Chester Center
- Chicopee Falls
- Colton Hollow
- Congamond
- Crescent Mills
- Carver
- Cambridgeport