- Calf Islands
- Calf Pasture Island
- Calhoun Corners
- Calves Island
- Calves Island Bar
- Campville
- Canaan
- Canaan Valley
- Candlewood Isle
- Candlewood Knolls
- Candlewood Lake Club
- Candlewood Orchards
- Candlewood Pines
- Candlewood Point
- Candlewood Shores
- Candlewood Springs
- Canfield Island
- Cannondale
- Canterbury
- Canton
- Canton Center
- Canton Valley
- Carroll Corners
- Carting Island
- Casagmo
- Case Corner
- Cat Island
- Cedar Beach
- Cedar Hammock
- Cedar Heights