Massachusetts Neighborhoods C
- Cambridge Highlands (33)
- Cambridgepark (7)
- Cambridgeport (249)
- Carlisle (2)
- Cedar Park (1)
- Cedar Woods (5)
- Central Billerica (28)
- Central Hudson (15)
- Central Maverick Square-Paris St (6)
- Central Peabody (21)
- Central Square (36)
- Central Tewksbury (5)
- Centralville (28)
- Charlestown Navy Yard (3)
- Chemistry (2)
- Chestnut Hill Middlesex (33)
- Chestnut Hill Norfolk (22)
- Chinatown (109)
- Cleghorn (9)
- Cleveland Circle (139)
- Codman Square-East Codman Hill (52)
- Columbia Point (2)
- Columbus Park-Worcester (13)
- Commonwealth (6)
- Conway Park (177)
- Coolidge Corner (1146)
- Cottage Hill (4)
- Crescent Beach (45)
- Crockerville (2)
- Cummingsville (10)
- Cushing Square (27)