Banks in Yellowstone County, Montana
47 active bank branches operated by 12 institutions, per FDIC records.
Active branches
47
Banks present
12
Deposits (2025)
$7.4B
Closings since 2020
6
9 openings
Largest banks by deposits in Yellowstone County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| First Interstate Bank | $2.0B | 26.6% | 10 |
| U.S. Bank | $1.4B | 19% | 4 |
| Stockman Bank of Montana | $1.2B | 15.8% | 6 |
| Wells Fargo | $996M | 13.5% | 4 |
| Glacier Bank | $885M | 11.9% | 7 |
| The Yellowstone Bank | $633M | 8.5% | 5 |
| Opportunity Bank of Montana | $110M | 1.5% | 3 |
| Little Horn State Bank | $89M | 1.2% | 1 |
| Bravera Bank | $68M | 0.9% | 3 |
| Chase Bank | $44M | 0.6% | 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.