Massachusetts Neighborhoods C
- Cambridge Highlands (59)
- Cambridgepark (8)
- Cambridgeport (410)
- Carlisle (5)
- Cedar Woods (11)
- Central Billerica (7)
- Central Hudson (8)
- Central Maverick Square-Paris St (5)
- Central Peabody (26)
- Central Square (53)
- Central Tewksbury (5)
- Centralville (13)
- Charlestown Navy Yard (3)
- Chemistry (1)
- Chestnut Hill Middlesex (60)
- Chestnut Hill Norfolk (44)
- Chinatown (157)
- Cleghorn (4)
- Cleveland Circle (151)
- Codman Square-East Codman Hill (96)
- Columbia Point (2)
- Columbus Park-Worcester (9)
- Commonwealth (12)
- Conway Park (340)
- Coolidge Corner (1537)
- Cottage Hill (7)
- Crescent Beach (114)
- Crockerville (3)
- Cummingsville (17)
- Cushing Square (67)