Marinette County, Wisconsin, a core county of the Marinette-Iron Mountain, WI-MI market, holds $1.2B in deposits across 6 insured institutions and 17 branches. The Stephenson National Bank and Trust is the largest deposit holder at 36.4% share. The top three institutions hold 68.6% of deposits, which places the county in the concentrated band. Deposits have grown 29.5% since 2020 while the branch count fell by 1. It produces $1.9B of output, ranking #947 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 18 in 2020 to 17 in 2025. Institutions: 8 to 6. Top-three share: 69.1% to 68.6%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| The Stephenson National Bank and Trust | $452M | 36.4% | +30% |
| Associated Bank, National Association | $207M | 16.7% | +35% |
| Nicolet National Bank | $193M | 15.5% | +141% |
| The Peshtigo National Bank | $177M | 14.2% | +10% |
| Farmers & Merchants Bank & Trust | $142M | 11.4% | +5% |
| BMO Bank National Association | $71M | 5.7% | +43% |
The 6 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 Marinette-Iron Mountain market
Marinette County is one of 4 counties that make up the Marinette-Iron Mountain, WI-MI market, a Combined Statistical Area (ranked #279 of 293 U.S. markets by economic output). It produces 46.6% of the market’s output and holds 53.5% of its deposits.
| Measure | Marinette County | Share of Marinette-Iron Mountain market |
|---|---|---|
| 2024 GDP | $1.9B | 46.6% |
| Deposits | $1.2B | 53.5% |
| Population | 42,574 | 44.3% |
See the Marinette-Iron Mountain market in Market Intelligence →
Recruiting in Marinette 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 Marinette County, on a retained basis.
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