- Bainbridge
- Bala Cynwyd
- Bally
- Bangor
- Barrett
- Barrett Township
- Barto
- Bartonsville
- Bath
- Beach Lake
- Bear Creek
- Beaver
- Beaver Falls
- Beaverdale
- Beavertown
- Beccaria
- Bechtelsville
- Bedford
- Bedford Township
- Bedminster
- Beech Creek
- Beech Creek Township
- Belle Vernon
- Bellefonte
- Belleville
- Bellwood
- Bensalem
- Benton Township
- Bernville
- Berrysburg
- Berwyn
- Bethel
- Bethel Park
- Bethlehem
- Big Bass Lake
- Big Run
- Bigler
- Birchrunville
- Birdsboro
- Blain
- Blairs Mills
- Blairsville
- Blakely
- Blakeslee
- Blanchard
- Blandburg
- Blandon
- Blooming Glen
- Bloomsburg
- Blossburg
- Blue Bell
- Boalsburg
- Boiling Springs
- Boothwyn
- Bowers
- Bowmansdale
- Bowmanstown
- Boyertown
- Bradford
- Bradford Township
- Bradys Bend
- Breinigsville
- Bridgeport
- Bridgeton Township
- Bristol
- Brittany Farms-The Highlands
- Broad Top
- Broad Top City
- Brockton
- Brockway
- Brodheadsville
- Brogue
- Brookhaven
- Broomall
- Brownstown
- Brownsville
- Brush Valley
- Bryn Athyn
- Bryn Mawr
- Buck Hill Falls
- Buckingham
- Buffalo Mills
- Burnham
- Burnside
- Bushkill
- Butler Township