- Cherry Ridge Ranch
- Chester
- Chestnut
- Chico
- Chico Hot Springs
- Chicory
- Childs
- Chimney Crossing
- Chimney Rock
- Chinatown
- Chinook
- Choteau
- Choteau Junction
- Christina
- Chrome Island
- Churchill
- Cinnabar Court
- Circle
- Circle 'J' Mobile Park
- Circle Trailer Court
- Clancy
- Clarkston
- Clasoil
- Clayton Island
- Clear Creek Terrace Trailer Court
- Clearwater
- Cleiv
- Cleveland
- Cliff Lake
- Cline