Barrios de Massachusetts B
- Back Bay (1170)
- Back Central (5)
- Bank Square (57)
- Bay Village (85)
- Beachmont (26)
- Beacon Hill (774)
- Bedford (20)
- Belingham Square (26)
- Bell Hill (8)
- Bellrock (11)
- Belmont Center (5)
- Belmont Hill (6)
- Belvidere (3)
- Bentley College (13)
- Beverly (14)
- Bleachery (22)
- Boston Common (114)
- Bowdoin North-Mount Bowdoin (31)
- Boxborough (4)
- Boyd Park (9)
- Bradford (7)
- Braintree Highlands (2)
- Brattle (48)
- Brittan Square (7)
- Broadmeadow Brook (10)
- Broadway (48)
- Brookline Village (472)
- Bunker Hill (1)
- Burlington Town Center (24)
- Burncoat (3)