- Cable Road
- Calef Island
- Camp Forest Lake
- Camp Gundalow
- Camp Hedding
- Camp Island
- Camp Islands
- Camp Notre Dame
- Campton
- Campton Hollow
- Campton Lower Village
- Campton Station
- Campton Upper Village
- Canaan
- Canaan Center
- Canaan Street
- Candia
- Candia Four Corners
- Canobie Lake
- Canterbury
- Canterbury Station
- Carroll
- Carthagina Island
- Cascade
- Cate Island
- Catsbane Island
- Cedar Waters
- Cemetery Corners
- Center Barnstead
- Center Conway