Idaho Cities
- Baker, ID
- Bancroft, ID
- Banida, ID
- Banks, ID
- Bannock, ID
- Barber, ID
- Barite, ID
- Barlow, ID
- Barrymore, ID
- Barton, ID
- Basalt, ID
- Basin, ID
- Bassett, ID
- Bates, ID
- Bayhorse, ID
- Bayview, ID
- Bear, ID
- Bear Lake Hot Springs, ID
- Bear Lake Sands, ID
- Beatty, ID
- Beetville, ID
- Bellevue, ID
- Bellgrove, ID
- Belmont, ID
- Belvidere, ID
- Bench, ID
- Benewah, ID
- Bennington, ID
- Berenice, ID
- Berger, ID
- Bern, ID
- Besslen, ID
- Big Cedar, ID
- Big Creek, ID
- Big Eddy, ID
- Big George, ID
- Bills, ID
- Black Bear, ID
- Black Canyon, ID
- Black Pine, ID
- Blackfoot, ID
- Blackrock, ID
- Blacks Creek, ID
- Blacktail, ID
- Blackwell, ID
- Blaine, ID
- Blanchard, ID
- Bliss, ID
- Bloomington, ID
- Blue Dome, ID
- Boehls, ID
- Boise, ID
- Boles, ID
- Bonanza, ID
- Bone, ID
- Bonners Ferry, ID
- Border, ID
- Boulder, ID
- Bovill, ID
- Bowmont, ID
- Bramwell, ID
- Bridge, ID
- Broadford, ID
- Bronx, ID
- Broten, ID
- Brownlee, ID
- Bruce Eddy, ID
- Bruneau, ID
- Buckingham, ID
- Budge, ID
- Buhl, ID
- Buist, ID
- Bundy, ID
- Bunn, ID
- Burgdorf, ID
- Burke, ID
- Burley, ID
- Burmah, ID
- Burns, ID
- Burton, ID
- Butte City, ID
- Byrne, ID
