Massachusetts Neighborhoods C
- Cambridge Highlands (21)
- Cambridgepark (5)
- Cambridgeport (206)
- Carlisle (1)
- Cedar Woods (5)
- Central Billerica (9)
- Central Hudson (12)
- Central Maverick Square-Paris St (7)
- Central Peabody (22)
- Central Square (23)
- Central Tewksbury (2)
- Centralville (16)
- Charlestown Navy Yard (3)
- Chemistry (2)
- Chestnut Hill Middlesex (25)
- Chestnut Hill Norfolk (21)
- Chinatown (94)
- Cleghorn (15)
- Cleveland Circle (137)
- Codman Square-East Codman Hill (33)
- Columbia Point (5)
- Columbus Park-Worcester (16)
- Commonwealth (7)
- Conway Park (193)
- Coolidge Corner (1135)
- Cottage Hill (6)
- Crescent Beach (53)
- Crockerville (2)
- Cummingsville (5)
- Cushing Square (25)