- Cobalt Village
- Coffey
- Cole Camp
- Conception Junction
- Coney Island
- Cool Valley
- Cooter
- Corder
- Cottleville
- Country Club Village
- Country Life Acres
- Cowgill
- Crocker
- Cross Timbers
- Crystal Lake Park
- Curryville
- Callao
- Carterville
- Cave
- Cedar Hill
- Chesterfield
- Chillicothe
- Clarksdale
- Clarkton
- Cosby
- Country Club Hills
- Craig
- Crane
- Crestwood
- Creve Coeur