Barrios de Massachusetts B
- Back Bay (1171)
- Back Central (5)
- Bank Square (89)
- Bay Village (99)
- Beachmont (20)
- Beacon Hill (837)
- Belingham Square (27)
- Bell Hill (4)
- Bellrock (8)
- Belmont Center (8)
- Belmont Hill (6)
- Belvidere (7)
- Bentley College (13)
- Bleachery (42)
- Boston Common (198)
- Bowdoin North-Mount Bowdoin (36)
- Boyd Park (12)
- Bradford (8)
- Brattle (37)
- Brittan Square (5)
- Broadmeadow Brook (24)
- Broadway (40)
- Brookline Village (471)
- Bunker Hill (1)
- Burlington Town Center (16)
- Burncoat (3)