| Uninum | Name | Address 1 | Address 2 | City | County | Established | Accquired | | 12208 | DUTTON BRANCH | 101 Main St W | 59433 | Dutton | Teton | 09/12/1960 | 01/01/2019 |
| 1328 | DENTON BRANCH | 423 Broadway Ave | 59430 | Denton | Fergus | 06/01/1929 | 01/01/2019 |
| 14162 | ASHLAND BRANCH | 300 Main St | 59003 | Ashland | Rosebud | 10/13/1971 | 04/30/2022 |
| 1440 | GLASGOW BRANCH | 540 2nd Ave S | 59230 | Glasgow | Valley | 04/30/2022 | 04/30/2022 |
| 1447 | HINSDALE BRANCH | 203 Mountana St | 59241 | Hinsdale | Valley | 10/20/1916 | 04/30/2022 |
| 1460 | TWIN BRIDGES BRANCH | 107 S Main St | 59754 | Twin Bridges | Madison | 01/01/1917 | 02/01/2018 |
| 264544 | BIG TIMBER BRANCH | 101 Mcleod St | 59011 | Big Timber | Sweet Grass | 03/01/1933 | 11/30/2012 |
| 264571 | HAMILTON BRANCH | 711 S 1st St | 59840 | Hamilton | Ravalli | 01/01/1911 | 11/30/2012 |
| 271 | WOLF POINT BRANCH | 111 3rd Ave S | 59201 | Wolf Point | Roosevelt | 01/01/1913 | 01/01/2020 |
| 276 | CULBERTSON BRANCH | 205 Broadway Ave | 59218 | Culbertson | Roosevelt | 01/01/1926 | 04/30/2022 |
| 278968 | HELENA NEILL BRANCH | 28 Neill Ave | Helena, MT 59601 | Helena | Lewis And Clark | 01/01/1922 | 12/31/1999 |
| 278971 | BUTTE BRANCH | 3401 Harrison Ave | Butte-Silver Bow, MT 59701 | Butte | Silver Bow | 01/01/1922 | 12/31/1999 |
| 364403 | THREE FORKS BRANCH | 120 S Montana St | Bozeman, MT 59752 | Three Forks | Gallatin | 01/28/2002 | 04/30/2022 |
| 40856 | LIVINGSTON BRANCH | 123 S Main St | 59047 | Livingston | Park | 03/01/1933 | 11/30/2012 |
| 43016 | Opportunity Bank of Montana | 1400 Prospect Ave | Helena, MT 59601 | Helena | Lewis And Clark | 01/01/1922 | |
| 498675 | HELENA SKYWAY BRANCH | 2090 Cromwell Dixon Ln | Helena, MT 59602 | Helena | Lewis And Clark | 01/02/2009 | 12/31/1999 |
| 518085 | BOZEMAN OAK BRANCH | 1455 W Oak St | Bozeman, MT 59715 | Bozeman | Gallatin | 10/13/2009 | 12/31/1999 |
| 580295 | CHOTEAU BRANCH | 27 1st St Nw | 59422 | Choteau | Teton | 07/20/2016 | 01/01/2019 |
| 590334 | GREAT FALLS BRANCH | 501 River Dr S | Great Falls, MT 59405 | Great Falls | Cascade | 07/24/2017 | 12/31/1999 |
| 598292 | HELENA BRANCH | 7517 Roughsawn Dr | Helena, MT 59602 | Helena | Lewis And Clark | 05/29/2018 | 04/30/2022 |
| 617405 | BILLINGS 27TH BRANCH | 1005 N 27th St | Billings, MT 59101 | Billings | Yellowstone | 10/15/2019 | 12/31/1999 |
| 629633 | BOZEMAN VALLEY COMMONS BRANCH | 4150 Valley Commons Dr | Bozeman, MT 59718 | Bozeman | Gallatin | 01/08/2021 | 12/31/1999 |
| 630422 | MISSOULA SOUTH BRANCH | 1821 South Ave W | Missoula, MT 59801 | Missoula | Missoula | 01/29/2021 | 12/31/1999 |
| 635029 | WINIFRED COMMUNITY OFFICE BRANCH | 205 Main St | 59489 | Winifred | Fergus | 04/01/2021 | 12/31/1999 |
| 635064 | BILLINGS SHILOH BRANCH | 1112 Shiloh Crossing Blvd | Billings, MT 59102 | Billings | Yellowstone | 07/12/2021 | 12/31/1999 |
| 647618 | BILLINGS HEIGHTS BRANCH | 1639 Main St | Billings, MT 59105 | Billings | Yellowstone | 06/13/2022 | 12/31/1999 |
| 673005 | MISSOULA BROADWAY BRANCH | 2215 W Broadway | Missoula, MT 59808 | Missoula | Missoula | 02/10/2025 | 12/31/1999 |
| 7563 | FROID BRANCH | 109 Main St | 59226 | Froid | Roosevelt | 08/11/1911 | 04/30/2022 |
| 7565 | SHERIDAN OFFICE BRANCH | 103 N Main St | 59749 | Sheridan | Madison | 12/30/1930 | 02/01/2018 |
| 757 | TOWNSEND BRANCH | 400 Broadway St | 59644 | Townsend | Broadwater | 06/01/1899 | 01/01/2019 |
