Missoula County, Montana, a core county of the Missoula, MT market, holds $3.7B in deposits across 11 insured institutions and 32 branches. First Interstate Bank is the largest deposit holder at 22.4% share. The top three institutions hold 56.6% of deposits, which places the county in the moderately concentrated band. Deposits have grown 22.4% since 2020 while the branch count fell by 4. It produces $7.1B of output, ranking #464 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 36 in 2020 to 32 in 2025. Institutions: 12 to 11. Top-three share: 63.0% to 56.6%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| First Interstate Bank | $825M | 22.4% | +3% |
| Glacier Bank | $815M | 22.2% | +8% |
| Stockman Bank of Montana | $440M | 12.0% | +95% |
| Wells Fargo Bank, National Association | $370M | 10.1% | +20% |
| TrailWest Bank | $368M | 10.0% | +43% |
| U.S. Bank National Association | $342M | 9.3% | +1% |
| Bank of Montana | $272M | 7.4% | +130% |
| Opportunity Bank of Montana | $65M | 1.8% | +27% |
| Farmers State Bank | $65M | 1.8% | +9% |
| Citizens Alliance Bank | $58M | 1.6% | +39% |
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 Missoula market
Missoula County is one of 2 counties that make up the Missoula, MT market, a Metropolitan Statistical Area (ranked #237 of 293 U.S. markets by economic output). It produces 98.3% of the market’s output and holds 98.3% of its deposits.
| Measure | Missoula County | Share of Missoula market |
|---|---|---|
| 2024 GDP | $7.1B | 98.3% |
| Deposits | $3.7B | 98.3% |
| Population | 123,513 | 96.0% |
See the Missoula market in Market Intelligence →
Recruiting in Missoula County
Deposits are split among a moderate 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 Missoula County, on a retained basis.
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