- Cedar Island
- Cedar Island
- Cedar Island
- Cedar Island
- Cedar Lake
- Cedar Land
- Cedarhurst
- Center Groton
- Centerbrook
- Centerville
- Central Village
- Central Waterford
- Chaffeeville
- Chaffinch Island
- Channel Rock
- Chaplin
- Charles Island
- Chatsworth Village
- Chauncey Island
- Cherry Park
- Cheshire
- Cheshire Village
- Chester
- Chester Center
- Chester Rock
- Chesterfield
- Chimney Point
- Chimon Island
- Chimon Rock
- City of Milford (balance)