- Carters
- Carters Grove
- Cartersville
- Caruso
- Caruthers Mill
- Carver Village
- Cary
- Casa Bella
- Casa Linda
- Cascade Heights
- Cascade Hills
- Cascade Woods
- Caseyville
- Cash
- Cass
- Cassandra
- Cassville
- Castile Cove
- Castle Courts
- Castle Cove
- Castlegate
- Castlegate
- Castlegate East
- Castlewood Estates
- Castlewood Mobile Home Park
- Catalina Beach Estates
- Cataula
- Catfish Acres
- Catlett
- Catlin