Massachusetts Neighborhoods C
- Cambridge Highlands (58)
- Cambridgepark (9)
- Cambridgeport (287)
- Carlisle (2)
- Cedar Woods (9)
- Central Billerica (4)
- Central Hudson (5)
- Central Maverick Square-Paris St (5)
- Central Peabody (24)
- Central Square (44)
- Central Tewksbury (5)
- Centralville (12)
- Charlestown Navy Yard (3)
- Chemistry (1)
- Chestnut Hill Middlesex (60)
- Chestnut Hill Norfolk (46)
- Chinatown (98)
- Cleghorn (2)
- Cleveland Circle (138)
- Codman Square-East Codman Hill (73)
- Columbia Point (2)
- Columbus Park-Worcester (5)
- Commonwealth (13)
- Conway Park (209)
- Coolidge Corner (1469)
- Cottage Hill (3)
- Crescent Beach (105)
- Crockerville (2)
- Cummingsville (9)
- Cushing Square (56)