Massachusetts Neighborhoods C
- Cambridge Highlands (46)
- Cambridgepark (8)
- Cambridgeport (399)
- Carlisle (4)
- Cedar Woods (9)
- Central Billerica (20)
- Central Hudson (13)
- Central Maverick Square-Paris St (4)
- Central Peabody (22)
- Central Square (45)
- Central Tewksbury (2)
- Centralville (11)
- Charlestown Navy Yard (3)
- Chemistry (2)
- Chestnut Hill Middlesex (45)
- Chestnut Hill Norfolk (26)
- Chinatown (174)
- Cleghorn (7)
- Cleveland Circle (154)
- Codman Square-East Codman Hill (88)
- Columbia Point (2)
- Columbus Park-Worcester (8)
- Commonwealth (19)
- Conway Park (488)
- Coolidge Corner (1316)
- Cottage Hill (6)
- Crescent Beach (115)
- Crockerville (1)
- Cummingsville (13)
- Cushing Square (44)