Yellowstone County, Montana, a core county of the Billings, MT market, holds $7.4B in deposits across 12 insured institutions and 45 branches. First Interstate Bank is the largest deposit holder at 26.6% share. The top three institutions hold 61.4% of deposits, which places the county in the concentrated band. Deposits have grown 30.4% since 2020. It produces $10.8B of output, ranking #340 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 45 in 2020 to 45 in 2025. Institutions: 11 to 12. Top-three share: 60.7% to 61.4%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| First Interstate Bank | $2.0B | 26.6% | +40% |
| U.S. Bank National Association | $1.4B | 19.0% | +23% |
| Stockman Bank of Montana | $1.2B | 15.8% | +31% |
| Wells Fargo Bank, National Association | $996M | 13.4% | +24% |
| Glacier Bank | $885M | 11.9% | +24% |
| The Yellowstone Bank | $633M | 8.5% | +39% |
| Opportunity Bank of Montana | $110M | 1.5% | +149% |
| Little Horn State Bank | $89M | 1.2% | +113% |
| Bravera Bank | $68M | 0.9% | no 2020 presence |
| JPMorgan Chase Bank, National Association | $44M | 0.6% | no 2020 presence |
The 10 insured institutions with a branch presence in this county, as of June 30, 2025. Five-year change compares the same institution’s county deposits in 2020 and 2025. Institutions are tracked by FDIC certificate number, and where an institution acquired another bank, the acquired bank’s prior deposits are folded into the baseline so the change reflects the combined, continuing franchise rather than reading as new. Even so, a large gain can reflect acquisition rather than competitive growth; “no 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year.
Part of the Billings market
Yellowstone County is one of 3 counties that make up the Billings, MT market, a Metropolitan Statistical Area (ranked #179 of 293 U.S. markets by economic output). It produces 92.1% of the market’s output and holds 93.4% of its deposits.
| Measure | Yellowstone County | Share of Billings market |
|---|---|---|
| 2024 GDP | $10.8B | 92.1% |
| Deposits | $7.4B | 93.4% |
| Population | 172,692 | 89.2% |
View the full Billings market profile →
Recruiting in Yellowstone County
Deposits are held closely by the largest banks, which often means the bankers worth recruiting are inside a small number of institutions. Who holds the deposits, and how contested the market is, shapes both the runway for growth and the competition you would be recruiting against. We recruit commercial relationship managers, banking teams, and market leaders for banks building in markets like Yellowstone County, on a retained basis.
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