- Clinton
- Cochrans Mills
- Cogley Island
- Cooks Summit
- Cosmus
- Craigsville
- Cannelton
- Celia
- College Hill
- Comettsburg
- Crestmont Village
- Crow Island (historical)
- Centerville
- Cessna
- Chalybeate
- Chaneysville
- Charlesville
- Churchville
- Clear Ridge
- Cooks Mills
- Cottles Corner
- Cypher
- Cadis
- Carbon
- Cedar Ledge
- Checkerville
- Cherrytown
- Codding
- Cold Spring
- Coryland