- Conleys Grove
- Cowbell Corners
- Crane Crossing
- Creek Area
- Carthagina Island
- Chase Village
- Clark Island
- Clinton Grove
- Clinton Village
- Cricket Corner
- Curtis Corner
- Canterbury Station
- Cilleyville
- Colby
- Concord Heights
- Concord Manor
- Crockett Corner
- Canaan
- Carroll
- Center Harbor
- Calef Island
- Central Park
- Coburn
- Cocheco
- Crocketts Crossing
- Chandlers Mills
- Chase Island
- Claremont Junction
- Cornish Center
- Cornish City