- Barber
- Big Bar
- Big Bend
- Blavo
- Brush Creek
- Big Bear City
- Big Bear Lake
- Big Pine
- Big River
- Biggs
- Biola
- Bishop
- Blairsden
- Big Bar
- Big Meadow
- Big Trees
- Big Trees Village
- Big Valley
- Blue Lake Junction
- Blue Lake Springs
- Bummerville
- Blue Lake
- Bluewater
- Blythe
- Bodega Bay
- Bodfish
- Bolinas
- Bombay Beach
- Bonita
- Bonsall