Towns
| State | City/Town | Town Title |
|---|---|---|
| Montana | Biddle | Biddle, MT |
| Montana | Big Arm | Big Arm, MT |
| Montana | Big Sandy | Big Sandy, MT |
| Montana | Big Sky | Big Sky, MT |
| Montana | Big Timber | Big Timber, MT |
| Montana | Bigfork | Bigfork, MT |
| Montana | Bighorn | Bighorn, MT |
| Montana | Billings | Billings, MT |
| Montana | Birney | Birney, MT |
| Montana | Black Eagle | Black Eagle, MT |
| Montana | Bloomfield | Bloomfield, MT |
| Montana | Bonner | Bonner, MT |
| Montana | Boulder | Boulder, MT |
| Montana | Box Elder | Box Elder, MT |
| Montana | Boyd | Boyd, MT |
| Montana | Boyes | Boyes, MT |
| Montana | Bozeman | Bozeman, MT |
| Montana | Brady | Brady, MT |
| Montana | Bridger | Bridger, MT |
| Montana | Broadus | Broadus, MT |
| Montana | Broadview | Broadview, MT |
| Montana | Brockton | Brockton, MT |
| Montana | Brockway | Brockway, MT |
| Montana | Browning | Browning, MT |
| Montana | Brusett | Brusett, MT |