- Chicken Coop Island
- Chili
- China
- Chrisney
- Christiansburg
- Churubusco
- Cicero
- Cincinnati
- Cincinnati
- Circle Mobile Home Park
- Circle Park
- Circleville
- Clanricarde
- Clare
- Clark Siding
- Clarke Junction
- Clarks
- Clarks Hill
- Clarks Landing
- Clarksburg
- Clarksdale
- Clarksville
- Clarksville
- Clay City
- Clay City
- Claypool
- Claysville
- Clayton
- Clear Creek
- Clear Lake