Mercer County, Illinois, a county in the Davenport-Moline, IA-IL market, holds $420M in deposits across 6 insured institutions and 10 branches. Farmers State Bank of Western Illinois is the largest deposit holder at 20.1% share. The top three institutions hold 59.4% of deposits, which places the county in the moderately concentrated band. Deposits have grown 14.6% since 2020. It produces $432M of output, ranking #1,386 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 10 in 2020 to 10 in 2025. Institutions: 6 to 6. Top-three share: 58.1% to 59.4%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| Farmers State Bank of Western Illinois | $85M | 20.1% | +31% |
| BankOrion | $83M | 19.8% | +2% |
| Blackhawk Bank & Trust | $82M | 19.4% | +28% |
| Midwest Bank | $59M | 14.1% | +87% |
| 1st Community Bank | $59M | 14.0% | +1% |
| CBI Bank & Trust | $53M | 12.6% | no 2020 presence |
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 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 Davenport-Moline market
Mercer County is one of 6 counties that make up the Davenport-Moline, IA-IL market, a Combined Statistical Area (ranked #105 of 293 U.S. markets by economic output). It produces 1.6% of the market’s output and holds 3.2% of its deposits.
| Measure | Mercer County | Share of Davenport-Moline market |
|---|---|---|
| 2024 GDP | $432M | 1.6% |
| Deposits | $420M | 3.2% |
| Population | 15,229 | 3.3% |
View the full Davenport-Moline market profile →
Recruiting in Mercer 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 Mercer County, on a retained basis.
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