- Cedar Grove Colony
- Camp Crook
- Country Village Mobile Park
- Canistota
- Canova
- Cadotte Island (historical)
- Crow Creek
- Clearfield Colony
- Cottonwood Island (historical)
- Claire City
- Collins Colony
- Clay Point
- Colfax Corner
- Colman
- Colome
- Colonial Pine Hills
- Crandall
- Cresbard
- Crooks
- Craven
- Craven Corner
- Cascade Springs
- Carlock
- Chicot Island (historical)
- Castlewood
- Cavour
- Chamberlain
- Chancellor
- Conde
- Corona