- Clubhouse Estates
- Clumber
- Cohansey Village
- Colchester on the Severn
- College Hills
- College Manor
- College Station
- Collison Corner
- Colonial Manor
- Colonial Manor Estates
- Colonial Manor Trailer Park
- Colony Fairfield
- Colony Ridge
- Columbia Beach
- Conaways
- Conte Manor
- Cool Pond
- Cottage Grove Beach
- Country Club Estates
- Country Club Manor
- Country Place
- Courtney Manor
- Courts of Crofton
- Coxby Estates
- Cranberry Woods
- Creek View
- Cresston Park
- Crestwood
- Crofton Commons
- Crofton Highlands