Madison County, Illinois, a core county of the St. Louis-St. Charles-Farmington, MO-IL market, holds $6.5B in deposits across 25 insured institutions and 77 branches. FCB Banks is the largest deposit holder at 19.2% share. The top three institutions hold 47.0% of deposits, which places the county in the moderately concentrated band. Deposits have grown 14.5% since 2020 while the branch count fell by 12. It produces $12.9B of output, ranking #305 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 89 in 2020 to 77 in 2025. Institutions: 25 to 25. Top-three share: 47.7% to 47.0%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| FCB Banks | $1.3B | 19.2% | +32% |
| Busey Bank | $1.1B | 17.2% | -1% |
| First Mid Bank & Trust, National Association | $692M | 10.6% | +10% |
| U.S. Bank National Association | $666M | 10.2% | +16% |
| Regions Bank | $549M | 8.4% | +12% |
| Carrollton Bank | $363M | 5.6% | +78% |
| United Community Bank | $339M | 5.2% | +7% |
| Associated Bank, National Association | $320M | 4.9% | +2% |
| The Bradford National Bank of Greenville | $146M | 2.2% | +49% |
| Bank of Hillsboro, National Association | $128M | 2.0% | +36% |
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 St. Louis-St. Charles-Farmington market
Madison 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 6.8% of the market’s output and holds 4.8% of its deposits.
| Measure | Madison County | Share of St. Louis-St. Charles-Farmington market |
|---|---|---|
| 2024 GDP | $12.9B | 6.8% |
| Deposits | $6.5B | 4.8% |
| Population | 263,110 | 9.0% |
View the full St. Louis-St. Charles-Farmington market profile →
Recruiting in Madison 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 Madison County, on a retained basis.
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