- Blain
- Blairsville
- Blanchard
- Blawnox
- Blooming Valley
- Bloomsburg
- Blossburg
- Blue Bell
- Boalsburg
- Bonneauville
- Boothwyn
- Boswell
- Bowmanstown
- Boyertown
- Brackenridge
- Braddock
- Braddock Hills
- Bradford Woods
- Branch Dale
- Briar Creek
- Brickerville
- Brisbin
- Broad Top City
- Brockway
- Brodheadsville
- Broomall
- Brownstown
- Bruin
- Bryn Athyn
- Bryn Mawr