- Cow Island Number Forty-seven
- Cabana Estates
- Cabbage Island
- Cabo
- Cactus Cove
- Cades
- Cades Cove
- Caffey
- Cagle
- Caigletown
- Cain Islands
- Cain Mill
- Cainsville
- Cairo
- Cairo
- Cairo Bend
- Calderwood
- Caldwell
- Calf Island
- Calhoun
- Calico
- Calistia
- Callie
- Calloway Island
- Calloway Island (historical)
- Calls
- Calvary
- Camargo
- Cambria
- Cambridge