- Cliftons
- Clifty
- Climax
- Clinton
- Clintonville
- Clio
- Closplint
- Cloud Crossing
- Clover
- Clover Bottom
- Clover-Darby
- Cloverport
- Clovertown
- Cloyds Landing
- Cloyds Landing Island
- Clutts
- Co-Operative
- Coakley
- Coal Run Village
- Coalton
- Cobb
- Cobblers Knob
- Cobhill
- Coburg
- Codyville
- Coe
- Cofer
- Coffee Creek
- Coffman
- Cogswell