- Blue Canyon
- Bluecreek
- Bluelight
- Blueslide
- Bluestem
- Blurock Landing
- Blyn
- Bobs Mobile Home Park
- Boddy
- Bodelteh Islands
- Bodie
- Bogucki Island
- Boise
- Boistfort
- Bolles
- Bonavilla Mobile Home Park
- Bonel Mobile Manor
- Bonney Lake
- Bordeaux
- Bossburg
- Boston Harbor
- Bothell
- Bothell East
- Bothell West
- Boulder Island
- Boulevard Park
- Boundary
- Boundary
- Bow
- Bow Lake Residential Mobile Home Community