- Bird Rock
- Boiling Point
- Brents Junction
- Briggs Terrace
- Butler
- Bass Lake Annex
- Bonadelle Ranchos
- Bonadelle Ranchos Five
- Bonadelle Ranchos-Madera Ranchos
- Bonadelle Ranchos Nine
- Bonita
- Borden
- Baltimore Park
- Bel Marin Keys
- Belvedere Island
- Bird Island
- Bird Rock
- Bivalve
- Black Point-Green Point
- Blakes Landing
- Burdell
- Burdell Island
- Bagby
- Barrett
- Ben Hur
- Blanchard
- Briceburg
- Bridgeport
- Buck Meadows
- Buena Vista