RANKING ·
Largest banks by total assets in Montana
35 of 35 banks in Montana that filed for the quarter ended June 30, 2026 are ranked. Every bank that filed for the quarter. Institutions with equal values share a rank. Source: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Total assets | Total assets |
|---|---|---|---|---|
| 1 | Glacier Bank | Kalispell, MT | $31.6 billion | $31.6 billion |
| 2 | First Interstate Bank | Billings, MT | $25.8 billion | $25.8 billion |
| 3 | Stockman Bank of Montana | Miles City, MT | $7.7 billion | $7.7 billion |
| 4 | Opportunity Bank of Montana | Helena, MT | $2.1 billion | $2.1 billion |
| 5 | Independence Bank | Havre, MT | $1.4 billion | $1.4 billion |
| 6 | The Yellowstone Bank | Laurel, MT | $1.3 billion | $1.3 billion |
| 7 | Trailwest Bank | Lolo, MT | $1.1 billion | $1.1 billion |
| 8 | Bank of Bridger N.A. | Bridger, MT | $803 million | $803 million |
| 9 | Farmers State Bank | Victor, MT | $790 million | $790 million |
| 10 | American Bank | Bozeman, MT | $630 million | $630 million |
| 11 | First Montana Bank Inc. | Missoula, MT | $530 million | $530 million |
| 12 | Little Horn State Bank | Hardin, MT | $413 million | $413 million |
| 13 | Bank of Montana | Missoula, MT | $309 million | $309 million |
| 14 | Three Rivers Bank of Montana | Kalispell, MT | $293 million | $293 million |
| 15 | Manhattan Bank | Manhattan, MT | $287 million | $287 million |
| 16 | Bank of the Rockies | Helena, MT | $277 million | $277 million |
| 17 | Madison Valley Bank | Ennis, MT | $264 million | $264 million |
| 18 | Valley Bank of Kalispell | Kalispell, MT | $218 million | $218 million |
| 19 | Valley Bank of Ronan | Ronan, MT | $218 million | $218 million |
| 20 | The First State Bank of Malta | Malta, MT | $190 million | $190 million |
| 21 | Eagle Bank | Polson, MT | $180 million | $180 million |
| 22 | The First State Bank of Shelby | Shelby, MT | $176 million | $176 million |
| 23 | First State Bank of Forsyth | Forsyth, MT | $166 million | $166 million |
| 24 | The Bank of Baker | Baker, MT | $161 million | $161 million |
| 25 | Freedom Bank | Columbia Falls, MT | $157 million | $157 million |
| 26 | Citizens Bank & Trust Company | Big Timber, MT | $155 million | $155 million |
| 27 | Pioneer Federal Savings & Loan Association | Deer Lodge, MT | $134 million | $134 million |
| 28 | Bank of Bozeman | Bozeman, MT | $108 million | $108 million |
| 29 | Garfield County Bank | Jordan, MT | $108 million | $108 million |
| 30 | Ascent Bank | Helena, MT | $104 million | $104 million |
| 31 | First Security Bank of Roundup | Roundup, MT | $94.5 million | $94.5 million |
| 32 | Belt Valley Bank | Belt, MT | $89.9 million | $89.9 million |
| 33 | First Security Bank of Deer Lodge | Deer Lodge, MT | $81.1 million | $81.1 million |
| 34 | Peoples Bank of Deer Lodge | Deer Lodge, MT | $50.8 million | $50.8 million |
| 35 | Davidson Trust Co. | Great Falls, MT | $13.2 million | $13.2 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings