- Cold Spring
- Corfu
- Corning
- Cambridge
- Camden
- Canton
- Carmel
- Chatham
- Chester
- Clayton
- Cleveland
- Clinton
- Clyde
- Catfield
- Cedar Swamp
- Chili Center
- Clarkson Mobile Home Park
- Clifton
- Coldwater
- Collamer
- Crescent Beach
- Crittenden
- Charleston
- Charleston Four Corners
- Charlesworth Corners
- Church Corners
- Cook Corners
- Cranesville
- Crescent Park
- Currytown