Bonneville County, Idaho, a core county of the Idaho Falls-Rexburg-Blackfoot, ID market, holds $2.6B in deposits across 9 insured institutions and 21 branches. The Bank of Commerce is the largest deposit holder at 27.5% share. The top three institutions hold 63.8% of deposits, which places the county in the concentrated band. Deposits have grown 24.8% since 2020 while the branch count fell by 4. It produces $6.9B of output, ranking #478 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 25 in 2020 to 21 in 2025. Institutions: 10 to 9. Top-three share: 57.4% to 63.8%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| The Bank of Commerce | $727M | 27.5% | +43% |
| Glacier Bank | $517M | 19.6% | +265% |
| Wells Fargo Bank, National Association | $440M | 16.7% | +28% |
| Zions Bancorporation, N.A. | $379M | 14.3% | +5% |
| U.S. Bank National Association | $204M | 7.7% | +36% |
| JPMorgan Chase Bank, National Association | $167M | 6.3% | +34% |
| KeyBank National Association | $92M | 3.5% | -22% |
| D. L. Evans Bank | $86M | 3.2% | +23% |
| Washington Federal Bank | $29M | 1.1% | -22% |
The 9 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 organic growth; “no 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year.
Part of the Idaho Falls-Rexburg-Blackfoot market
Bonneville County is one of 6 counties that make up the Idaho Falls-Rexburg-Blackfoot, ID market, a Combined Statistical Area (ranked #167 of 293 U.S. markets by economic output). It produces 52.2% of the market’s output and holds 57.7% of its deposits.
| Measure | Bonneville County | Share of Idaho Falls-Rexburg-Blackfoot market |
|---|---|---|
| 2024 GDP | $6.9B | 52.2% |
| Deposits | $2.6B | 57.7% |
| Population | 135,771 | 46.1% |
See the Idaho Falls-Rexburg-Blackfoot market in Market Intelligence →
Recruiting in Bonneville 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 Bonneville County, on a retained basis.
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