B
| Name of place | Number of counties | Principal county | Lower zip code | Upper zip code |
|---|---|---|---|---|
| Bach | 1 | Bonneville County | ||
| Baker | 1 | Lemhi County | 83467 | |
| Bancroft | 1 | Caribou County | 83217 | |
| Banida | 1 | Franklin County | 83264 | |
| Banks | 1 | Boise County | 83602 | |
| Bannock | 1 | Bannock County | 83204 | |
| Bannock | 1 | Power County | ||
| Barber | 1 | Ada County | ||
| Barite | 1 | Blaine County | ||
| Barlow | 1 | Jefferson County | ||
| Barrymore | 1 | Jerome County | ||
| Barton | 1 | Washington County | ||
| Basalt | 1 | Bingham County | 83218 | |
| Basin | 1 | Cassia County | 83346 | |
| Bassett | 1 | Jefferson County | ||
| Bates | 1 | Teton County | 83422 | |
| Bayhorse | 1 | Custer County | ||
| Bayview | 1 | Kootenai County | 83803 | |
| Beachs Corner | 1 | Bonneville County | 83401 | |
| Bear | 1 | Adams County | 83612 | |
| Bear Lake Hot Springs | 1 | Bear Lake County | ||
| Bear Lake Sands | 1 | Bear Lake County | ||
| Beatty | 1 | Ada County | ||
| Beers | 1 | Franklin County | ||
| Beetville | 1 | Cassia County | ||
| Bellevue | 1 | Blaine County | 83313 | |
| Bellgrove | 1 | Kootenai County | ||
| Belmont | 1 | Kootenai County | 83801 | |
| Belvidere | 1 | Valley County | ||
| Bench | 1 | Caribou County | 83241 | |
| Benewah | 1 | Benewah County | 83861 | |
| Bennington | 1 | Bear Lake County | 83254 | |
| Berenice | 1 | Butte County | ||
| Berger | 1 | Twin Falls County | ||
| Bern | 1 | Bear Lake County | 83220 | |
| Besslen | 1 | Lincoln County | ||
| Bickel | 1 | Twin Falls County | ||
| Big Cedar | 1 | Idaho County | ||
| Big Creek | 1 | Valley County | 83667 | |
| Big Eddy | 1 | Boise County | ||
| Big George | 1 | Nez Perce County | ||
| Big Springs | 1 | Fremont County | 83433 | |
| Bills | 1 | Twin Falls County | ||
| Black | 1 | Jerome County | ||
| Black Bear | 1 | Shoshone County | 83873 | |
| Blackbird Townsite | 1 | Lemhi County | ||
| Black Canyon | 1 | Gem County | ||
| Black Cloud | 1 | Shoshone County | 83873 | |
| Blackfoot | 1 | Bingham County | 83221 | |
| Black Lake | 1 | Kootenai County | 83861 | |
| Black Pine | 1 | Oneida County | ||
| Blackrock | 1 | Bannock County | ||
| Blacks Creek | 1 | Ada County | ||
| Blacktail | 1 | Bonner County | ||
| Blackwell | 1 | Kootenai County | ||
| Blaine | 1 | Camas County | ||
| Blaine | 1 | Latah County | 83843 | |
| Blanchard | 1 | Bonner County | 83804 | |
| Blaser | 1 | Bannock County | ||
| Bliss | 1 | Gooding County | 83314 | |
| Bloomington | 1 | Bear Lake County | 83223 | |
| Blue Dome | 1 | Clark County | 83464 | |
| Boehls | 1 | Clearwater County | ||
| Boise | 1 | Ada County | 83701 | 19 |
| Boise Air Terminal | 1 | Ada County | 83705 | |
| Boise City | 1 | Ada County | 83701 | 19 |
| Boise Heights | 1 | Ada County | ||
| Boise Hills Village | 1 | Ada County | ||
| Boise Junction | 1 | Ada County | ||
| Boles | 1 | Idaho County | ||
| Bonanza | 1 | Custer County | 83278 | |
| Bone | 1 | Bonneville County | 83401 | |
| Bonners Ferry | 1 | Boundary County | 83805 | |
| Borah | 1 | Ada County | 83702 | |
| Borah | 1 | Power County | ||
| Border | 1 | Bear Lake County | ||
| Boulder | 1 | Blaine County | ||
| Bovard | 1 | Latah County | ||
| Bovill | 1 | Latah County | 83806 | |
| Bowmont | 1 | Canyon County | 83686 | |
| Box Canyon | 1 | Fremont County | 83429 | |
| Bradley | 1 | Shoshone County | 83837 | |
| Bramwell | 1 | Gem County | ||
| Bridge | 1 | Cassia County | 83342 | |
| Broadford | 1 | Blaine County | 83313 | |
| Bronx | 1 | Bonner County | ||
| Broten | 1 | Bonner County | 83864 | |
| Brownlee | 1 | Boise County | ||
| Bruce Eddy | 1 | Clearwater County | ||
| Bruneau | 1 | Owyhee County | 83604 | |
| Bruneau Valley | 1 | Owyhee County | 83604 | |
| Buckingham | 1 | Payette County | ||
| Budge | 1 | Minidoka County | ||
| Buhl | 1 | Twin Falls County | 83316 | |
| Buist | 1 | Oneida County | 83243 | |
| Bundy | 1 | Nez Perce County | ||
| Bunn | 1 | Shoshone County | ||
| Burgdorf | 1 | Idaho County | 83638 | |
| Burke | 1 | Shoshone County | 83807 | |
| Burley | 2 | Cassia County | 83318 | |
| Burley | 2 | Minidoka County | 83318 | |
| Burmah | 1 | Lincoln County | 83349 | |
| Burns | 1 | Boundary County | ||
| Burton | 1 | Madison County | 83440 | |
| Butler Bay | 1 | Benewah County | 83861 | |
| Butte City | 1 | Butte County | 83213 | |
| Byrne | 1 | Madison County |
Read more about this topic: List Of Places In Idaho: A-K