- Bowens
- Breezy Knoll Estates
- Breezy Point
- Brianwood
- Briarwood
- Bright Acres Mobile Home Park
- Brighton Woods
- Briscoe
- Brookside
- Buckler Trailer Park
- Buena Vista
- Buena Vista Hills
- Buena Vista on the Patuxent
- Burch
- Buzzard Island
- Bacon Hill
- Barksdale
- Barksdale Farms
- Barnes Corner
- Battery Point Farms
- Bay View Estates
- Belvedere
- Bethel
- Beulah Land
- Blake
- Blue Ball Village
- Blueball
- Blythedale
- Bohemia Acres
- Bohemias Mills