- Cabin Creek Estates
- Cabin Hill
- Cabin John
- Cabin John Island
- Cabin John Park
- Cabin River Farms
- Cacaway Island
- Cactus Hill
- Cadillac Homes
- Caernarvon Woods
- Cal Acres
- Calebs Delight
- California
- California
- Callaway
- Calloway Landing
- Calvary
- Calvert
- Calvert Acres
- Calvert Acres
- Calvert Beach
- Calvert Beach Estates
- Calvert Beach-Long Beach
- Calvert Beach Park
- Calvert Chase
- Calvert Estates
- Calvert Heights
- Calvert Hills
- Calvert Manor
- Calvert Manor