Woodbury County, Iowa, a core county of the Sioux City-Le Mars, IA-NE-SD market, holds $3.4B in deposits across 20 insured institutions and 45 branches. The Security National Bank of Sioux City, Iowa is the largest deposit holder at 28.8% share. The top three institutions hold 53.1% of deposits, which places the county in the moderately concentrated band. Deposits have grown 19.2% since 2020 while the branch count fell by 5. It produces $5.4B of output, ranking #564 of the 1,523 counties within a CSA or MSA by economic output.
Deposit trend
Branches: 50 in 2020 to 45 in 2025. Institutions: 21 to 20. Top-three share: 53.8% to 53.1%.
Leading institutions by deposits
| Institution | Deposits | Share | 5‑yr |
|---|---|---|---|
| The Security National Bank of Sioux City, Iowa | $968M | 28.8% | +19% |
| Central Bank | $426M | 12.7% | +71% |
| Wells Fargo Bank, National Association | $395M | 11.8% | -13% |
| U.S. Bank National Association | $282M | 8.4% | +19% |
| Great Southern Bank | $281M | 8.3% | +16% |
| Primebank | $219M | 6.5% | +83% |
| Pioneer Bank | $201M | 6.0% | +34% |
| Northwest Bank | $113M | 3.4% | +13% |
| United Bank of Iowa | $90M | 2.7% | +41% |
| Availa Bank | $77M | 2.3% | +86% |
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 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 Sioux City-Le Mars market
Woodbury County is one of 4 counties that make up the Sioux City-Le Mars, IA-NE-SD market, a Combined Statistical Area (ranked #187 of 293 U.S. markets by economic output). It produces 50.7% of the market’s output and holds 57.2% of its deposits.
| Measure | Woodbury County | Share of Sioux City-Le Mars market |
|---|---|---|
| 2024 GDP | $5.4B | 50.7% |
| Deposits | $3.4B | 57.2% |
| Population | 106,649 | 62.2% |
View the full Sioux City-Le Mars market profile →
Recruiting in Woodbury 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 Woodbury County, on a retained basis.
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