- Becky Island
- Bedstead Corner
- Beeman
- Beer Bottle Crossing
- Beetville
- Bellevue
- Bellgrove
- Belmont
- Belvidere
- Bench
- Benewah
- Bengoechea Place
- Bennington
- Berenice
- Berger
- Bergstrom Place
- Bern
- Besslen
- Best Corner
- Big Cedar
- Big Cottonwood Island
- Big Creek
- Big Eddy
- Big Foot Island
- Big George
- Big Island
- Big Island (historical)
- Big Rocky Island
- Big Springs
- Bills