- Buell
- Bueno Vista Acres Trailer Court
- Busch
- Big Sky Colony
- Bison
- Belmont
- Beartown
- Bradman
- Byrne
- Bitterroot Trailer Court
- Burnham
- Bernice
- Blazing Place
- Barker
- Bear Dance
- Belle-Vue Court
- Big Arm Mobile Home Park
- Bird Island
- Bull Island
- Bald Butte
- Birdseye
- Buelow
- Bellevue Manor Trailer Park
- Basin
- Bigfork
- Boulder
- Box Elder
- Brockton
- Busby
- Baker