- Cohen Hill
- Cole Island
- Collins Creek
- Colony North
- Coon Island
- Crab Bank
- Creek Point
- Cherryvale
- Chesnee
- Cashion Crossroads
- Cherokee Hills
- Cabal
- Caldwell Crossroad
- Cedar Grove
- City View
- Campbell Crossroads
- Cane Island
- Cash
- Catarrh
- Crowburg
- Clarks Hill
- Central Crossroads
- Conyer Lake Island
- Country Club Estates
- Cypress Fork Crossroads
- Caldwell
- Catholic Hill
- Cattle Island
- Colleton
- Clemson