| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | United Bank of Iowa | Bank | 6 | $466.9M | 71.74% |
| 2 | The Shelby County State Bank | Bank | 1 | $64.6M | 9.92% |
| 3 | Availa Bank | Bank | 1 | $59.4M | 9.13% |
| 4 | North Star Community Credit Union | Credit union | 1 | $44.5M* | 6.84% |
| 5 | Iowa State Bank | Bank | 1 | $15.4M | 2.36% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $650.8M | 5 | 10 | United Bank of Iowa | 71.7% | 5,381 |
| 2025 | $635.3M | 5 | 10 | United Bank of Iowa | 69.9% | 5,153 |
| 2024 | $649.2M | 5 | 10 | United Bank of Iowa | 69.7% | 5,163 |
| 2023 | $624.0M | 5 | 10 | United Bank of Iowa | 69.9% | 5,196 |
| 2022 | $659.9M | 4 | 9 | United Bank of Iowa | 69.3% | 5,145 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.