Marion County, Illinois, a core county of the St. Louis-St. Charles-Farmington, MO-IL market, holds $1.1B in deposits across 12 insured institutions and 17 branches. Peoples National Bank , N.A. is the largest deposit holder at 29.9% share. The top three institutions hold 51.8% of deposits, which places the county in the moderately concentrated band. Deposits have grown 17.7% since 2020 while the branch count fell by 2. It produces $1.4B of output, ranking #1,080 of the 1,523 counties within a CSA or MSA by economic output.
Ranks show where the county stands among the 1,523 ranked counties (those within a Combined or Metropolitan Statistical Area that have a branch). They describe relative position, not a rating of market quality or suitability.
Deposit trend
Branches: 19 in 2020 to 17 in 2025. Institutions: 13 to 12. Top-three share: 46.9% to 51.8%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| Peoples National Bank | $317M | 29.9% | +50% |
| Community Partners Savings Bank | $137M | 13.0% | +22% |
| The Iuka State Bank | $94M | 8.8% | -5% |
| Midwest National Bank | $93M | 8.8% | +78% |
| Midland States Bank | $86M | 8.2% | +14% |
| U.S. Bank | $63M | 5.9% | -7% |
| Kinmundy Bank | $59M | 5.6% | +32% |
| Farmers State Bank of Hoffman | $54M | 5.1% | +29% |
| The Peoples State Bank of Newton, Illinois | $42M | 4.0% | +45% |
| First Financial Bank | $42M | 4.0% | +17% |
The 10 largest of 12 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. Deposit figures are nominal and are not adjusted for inflation.
Part of the St. Louis-St. Charles-Farmington market
Marion County is one of 17 counties that make up the St. Louis-St. Charles-Farmington, MO-IL market, a Combined Statistical Area (ranked #27 of 293 U.S. markets by economic output). It produces 0.7% of the market’s output and holds 0.8% of its deposits.
| Measure | Marion County | Share of parent market |
|---|---|---|
| 2024 GDP | $1.4B | 0.7% |
| Deposits | $1.1B | 0.8% |
| Population | 36,382 | 1.2% |
View the full St. Louis-St. Charles-Farmington market profile →
Recruiting in Marion 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 Marion County, on a retained basis.
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