Banks in Gallatin County, Montana
42 active bank branches operated by 17 institutions, per FDIC records.
Active branches
42
Banks present
17
Deposits (2025)
$5.0B
Closings since 2020
7
8 openings
Largest banks by deposits in Gallatin County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Glacier Bank | $1.9B | 37.2% | 9 |
| First Interstate Bank | $684M | 13.6% | 4 |
| Stockman Bank of Montana | $596M | 11.9% | 5 |
| Wells Fargo | $454M | 9% | 2 |
| American Bank | $343M | 6.8% | 3 |
| U.S. Bank | $309M | 6.1% | 2 |
| Opportunity Bank of Montana | $240M | 4.8% | 3 |
| Manhattan Bank | $232M | 4.6% | 4 |
| Bank of Bozeman | $86M | 1.7% | 1 |
| The Yellowstone Bank | $74M | 1.5% | 1 |
Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.
Cities and towns
Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.