RANKING ·
Fastest deposit growth in Montana
34 of 35 banks in Montana that filed for the quarter ended June 30, 2026 are ranked. Deposits of at least $25 million a year earlier; institutions whose assets rose 20% or more in the latest quarter, usually through a merger, are left out. Institutions with equal values share a rank. Source: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Deposits, change over 12 months | Total assets |
|---|---|---|---|---|
| 1 | Pioneer Federal Savings & Loan Association | Deer Lodge, MT | +16.8% | $134 million |
| 2 | Garfield County Bank | Jordan, MT | +16.3% | $108 million |
| 3 | Valley Bank of Ronan | Ronan, MT | +14.7% | $218 million |
| 4 | Glacier Bank | Kalispell, MT | +14.0% | $31.6 billion |
| 5 | Peoples Bank of Deer Lodge | Deer Lodge, MT | +11.9% | $50.8 million |
| 6 | Little Horn State Bank | Hardin, MT | +11.7% | $413 million |
| 7 | Freedom Bank | Columbia Falls, MT | +11.7% | $157 million |
| 8 | Bank of Bozeman | Bozeman, MT | +11.7% | $108 million |
| 9 | Belt Valley Bank | Belt, MT | +11.5% | $89.9 million |
| 10 | Trailwest Bank | Lolo, MT | +11.5% | $1.1 billion |
| 11 | Stockman Bank of Montana | Miles City, MT | +11.0% | $7.7 billion |
| 12 | The First State Bank of Shelby | Shelby, MT | +11.0% | $176 million |
| 13 | Manhattan Bank | Manhattan, MT | +9.0% | $287 million |
| 14 | First State Bank of Forsyth | Forsyth, MT | +8.9% | $166 million |
| 15 | The First State Bank of Malta | Malta, MT | +8.5% | $190 million |
| 16 | Citizens Bank & Trust Company | Big Timber, MT | +8.3% | $155 million |
| 17 | First Security Bank of Roundup | Roundup, MT | +6.8% | $94.5 million |
| 18 | The Yellowstone Bank | Laurel, MT | +5.9% | $1.3 billion |
| 19 | Farmers State Bank | Victor, MT | +4.8% | $790 million |
| 20 | Valley Bank of Kalispell | Kalispell, MT | +4.6% | $218 million |
| 21 | Bank of the Rockies | Helena, MT | +3.6% | $277 million |
| 22 | Opportunity Bank of Montana | Helena, MT | +3.1% | $2.1 billion |
| 23 | Bank of Montana | Missoula, MT | +2.6% | $309 million |
| 24 | The Bank of Baker | Baker, MT | +1.9% | $161 million |
| 25 | Independence Bank | Havre, MT | +1.4% | $1.4 billion |
| 26 | Madison Valley Bank | Ennis, MT | +1.3% | $264 million |
| 27 | First Montana Bank Inc. | Missoula, MT | +0.6% | $530 million |
| 28 | American Bank | Bozeman, MT | +0.2% | $630 million |
| 29 | Eagle Bank | Polson, MT | -0.5% | $180 million |
| 30 | Bank of Bridger N.A. | Bridger, MT | -1.4% | $803 million |
| 31 | Ascent Bank | Helena, MT | -1.6% | $104 million |
| 32 | Three Rivers Bank of Montana | Kalispell, MT | -4.3% | $293 million |
| 33 | First Interstate Bank | Billings, MT | -5.6% | $25.8 billion |
| 34 | First Security Bank of Deer Lodge | Deer Lodge, MT | -6.4% | $81.1 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings