- Carlisle
- Carlton Mobile Home Court
- Carmel
- Carnarvon
- Carnes
- Carney
- Carney
- Carnforth
- Carpenter
- Carriage Place
- Carroll
- Carroll Community Estates
- Carrollton
- Carrville
- Carson
- Carter Lake
- Cartersville
- Cascade
- Casey
- Casino Beach
- Cass
- Castalia
- Castana
- Castle Grove
- Castle Hill
- Cathedral Square
- Cattese
- Cedar
- Cedar Bluff
- Cedar City