Franklin County, Missouri, a county in the St. Louis-St. Charles-Farmington, MO-IL market, holds $3.8B in deposits across 17 insured institutions and 41 branches. Bank of Washington is the largest deposit holder at 23.2% share. The top three institutions hold 52.5% of deposits, which places the county in the moderately concentrated band. Deposits have grown 38.0% since 2020 while the branch count fell by 2. It produces $5.0B of output, ranking #597 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 43 in 2020 to 41 in 2025. Institutions: 17 to 17. Top-three share: 48.1% to 52.5%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| Bank of Washington | $888M | 23.2% | +41% |
| SULLIVAN BANK | $651M | 17.0% | +86% |
| United Bank of Union | $471M | 12.3% | +33% |
| Bank of Franklin County | $323M | 8.4% | +28% |
| First State Community Bank | $307M | 8.0% | +38% |
| Citizens Bank | $304M | 7.9% | +45% |
| U.S. Bank National Association | $278M | 7.3% | +19% |
| Farmers and Merchants Bank of St. Clair | $182M | 4.8% | +31% |
| Heritage Community Bank | $153M | 4.0% | +108% |
| Bank Star | $79M | 2.0% | +31% |
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
Franklin 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 2.6% of the market’s output and holds 2.8% of its deposits.
| Measure | Franklin County | Share of St. Louis-St. Charles-Farmington market |
|---|---|---|
| 2024 GDP | $5.0B | 2.6% |
| Deposits | $3.8B | 2.8% |
| Population | 108,090 | 3.7% |
View the full St. Louis-St. Charles-Farmington market profile →
Recruiting in Franklin 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 Franklin County, on a retained basis.
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