Massachusetts Neighborhoods C
- Cambridge Highlands (47)
- Cambridgepark (8)
- Cambridgeport (375)
- Carlisle (3)
- Cedar Woods (9)
- Central Billerica (18)
- Central Hudson (8)
- Central Maverick Square-Paris St (4)
- Central Peabody (25)
- Central Square (42)
- Central Tewksbury (2)
- Centralville (9)
- Charlestown Navy Yard (3)
- Chemistry (2)
- Chestnut Hill Middlesex (52)
- Chestnut Hill Norfolk (29)
- Chinatown (172)
- Cleghorn (8)
- Cleveland Circle (149)
- Codman Square-East Codman Hill (90)
- Columbia Point (2)
- Columbus Park-Worcester (7)
- Commonwealth (22)
- Conway Park (494)
- Coolidge Corner (1340)
- Cottage Hill (8)
- Crescent Beach (123)
- Crockerville (1)
- Cummingsville (17)
- Cushing Square (47)