- Beaver Creek
- Beaver Island
- Beaverton
- Becket
- Bedford
- Beebe
- Beehive
- Belfry
- Belgrade
- Belgrade Junction
- Belgrade Trailer Court
- Belgrade Village Mobile Home Park
- Belknap
- Bell Crossing
- Bell Ranch Colony
- Belle Creek
- Belle-Vue Court
- Bellevue Manor Trailer Park
- Belltower
- Belmont
- Belt
- Belt Creek
- Benchland
- Bend
- Benteen
- Benz
- Benzien
- Bernice
- Berts Trailer Court
- Biddle