Banks in Yellowstone County, Montana
47 active bank branches operated by 12 institutions, per FDIC records.
Active branches
47
Banks present
12
Deposits (2026)
$7.4B
Closings since 2020
6
9 openings
Largest banks by deposits in Yellowstone County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| First Interstate Bank | $1.8B | 24.6% | 10 |
| U.S. Bank | $1.5B | 19.8% | 4 |
| Stockman Bank of Montana | $1.3B | 17.1% | 6 |
| Glacier Bank | $895M | 12.1% | 7 |
| Wells Fargo | $895M | 12% | 4 |
| The Yellowstone Bank | $678M | 9.1% | 5 |
| Opportunity Bank of Montana | $108M | 1.4% | 3 |
| Little Horn State Bank | $106M | 1.4% | 1 |
| Bravera Bank | $93M | 1.3% | 3 |
| Chase Bank | $49M | 0.7% | 2 |
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.