B
- Babb
- Babcock
- Baby Island Heights
- Bacon
- Badger
- Bagdad Junction
- Bagley Junction
- Baileysburg
- Baker
- Baker-Langdon
- Balch
- Balford
- Ballard
- Ballow
- Bandera
- Bangor
- Bangor Trident Base
- Banks Lake South
- Banner
- Barberton
- Barco
- Barham
- Baring
- Barker
- Barnes
- Barron
- Barstow
- Basin City
- Bassett Junction
- Bates
- Battle Ground
- Batum
- Bay Center
- Bay City
- Bayne
- Bayshore
- Bayview
- Bay View
- Beach
- Beachcrest
- Beach Haven
- Beacon Hill
- Beatrice
- Beaux Arts
- Beaux Arts Village
- Beaver
- Beaver Valley
- Bedal
- Bedford
- Beebe
- Bees Mill
- Belfair
- Bellevue
- Bell Hill
- Bellingham
- Belmont
- Belmore
- Belvedere
- Benge
- Benson Hill
- Benton City
- Berkeley
- Berne
- Berrian
- Berrydale
- Berryman
- Berry Patch
- Bethel
- Bettie
- Beverly
- Beverly Acres
- Beverly Beach
- Bickleton
- Big Lake
- Bingen
- Bingville
- Birch
- Birch Bay
- Birchfield
- Birdsview
- Bishop
- Bissel
- Black Diamond
- Blacks Corner
- Blackwell
- Blaine
- Blakeslee Junction
- Blanchard
- Blockhouse
- Bluelight
- Blueside
- Blueslide
- Bluestem
- Blurock Landing
- Blyn
- Bodie
- Boise
- Boistfort
- Bolles
- Bonney Lake
- Bordeaux
- Bossburg
- Boston Harbor
- Bothell
- Boundary
- Bow
- Boyds
- Brace
- Brady
- Brandts Landing
- Breidablick
- Bremer
- Bremerton
- Brennan
- Bretland
- Brewster
- Bridgehaven
- Bridgeport
- Brier
- Brighton
- Brinnon
- Bristol
- Broadmoor
- Broadway
- Brockdale
- Brookfield
- Brooklyn
- Brown Lake
- Brownstown
- Brownsville
- Bruce
- Bruceport
- Brush Prairie
- Bryant
- Bryn Mawr
- Buckeye
- Buckhorn
- Buckley
- Bucoda
- Buena
- Bunker
- Bunker Hill
- Burbank
- Burien
- Burley
- Burlington
- Burnett
- Buroker
- Burr
- Burrows
- Burton
- Busby
- Byron
- B Z Corner