Barrios de Massachusetts B
- Back Bay (1261)
- Back Central (7)
- Bank Square (89)
- Bay Village (78)
- Beachmont (32)
- Beacon Hill (825)
- Belingham Square (25)
- Bell Hill (17)
- Bellrock (15)
- Belmont Center (6)
- Belmont Hill (12)
- Belvidere (8)
- Bentley College (17)
- Bleachery (38)
- Boston Common (149)
- Bowdoin North-Mount Bowdoin (38)
- Boyd Park (11)
- Bradford (8)
- Braintree Highlands (2)
- Brattle (42)
- Brightwood (1)
- Brittan Square (12)
- Broadmeadow Brook (14)
- Broadway (55)
- Brookline Village (539)
- Bunker Hill (1)
- Burlington Town Center (14)
- Burncoat (4)