Massachusetts Neighborhoods C
- Cambridge Highlands (33)
- Cambridgepark (7)
- Cambridgeport (247)
- Carlisle (2)
- Cedar Park (1)
- Cedar Woods (5)
- Central Billerica (27)
- Central Hudson (16)
- Central Maverick Square-Paris St (6)
- Central Peabody (23)
- Central Square (36)
- Central Tewksbury (4)
- Centralville (28)
- Charlestown Navy Yard (3)
- Chemistry (2)
- Chestnut Hill Middlesex (33)
- Chestnut Hill Norfolk (22)
- Chinatown (106)
- Cleghorn (9)
- Cleveland Circle (134)
- Codman Square-East Codman Hill (48)
- Columbia Point (2)
- Columbus Park-Worcester (9)
- Commonwealth (6)
- Conway Park (172)
- Coolidge Corner (1156)
- Cottage Hill (3)
- Crescent Beach (43)
- Crockerville (2)
- Cummingsville (10)
- Cushing Square (25)