- Copperville
- Crystal
- Cushman
- Campton Hollow
- Campton Lower Village
- Campton Station
- Campton Upper Village
- Canaan Center
- Canaan Street
- Center Haverhill
- Cheever
- Chocorua Island
- Curriers Mobile Home Park
- Cable Road
- Camp Gundalow
- Camp Hedding
- Candia Four Corners
- Canobie Lake
- Cedar Waters
- Cemetery Corners
- Chase Island
- Chases Grove
- Christian Shore
- Clampit Island
- Clark Hill
- Cluffs Crossing
- Coffins Mill
- Collettes Grove
- Colonial Pines
- Commons Island