- Bisel
- Bishop Place
- Bison
- Bitterroot Court
- Bitterroot Gateway Trailer Court
- Bitterroot Pines
- Bitterroot Trailer Court
- Black Eagle
- Blackfoot
- Blackleaf
- Blacktail
- Blackwood
- Blair
- Blair Crossing
- Blanchards Corner
- Blatchford
- Blazing Place
- Bloomfield
- Blossburg
- Blue Mountain Trailer Park
- Bluffport
- Blythe
- Boggs Island
- Bole
- Bond
- Bone Crossing
- Boneau
- Bonfield
- Bonner
- Bonner Junction