| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Security State Bank | Bank | 2 | $264.2M | 25.88% |
| 2 | Savings Bank | Bank | 2 | $163.2M | 15.99% |
| 3 | Citizens State Bank | Bank | 1 | $141.5M | 13.85% |
| 4 | Iowa State Bank | Bank | 3 | $138.0M | 13.52% |
| 5 | Peoples Bank | Bank | 1 | $124.8M | 12.22% |
| 6 | Sanborn Savings Bank | Bank | 1 | $66.6M | 6.53% |
| 7 | The Security National Bank of Sioux City, Iowa | Bank | 1 | $60.7M | 5.95% |
| 8 | United Community Bank | Bank | 1 | $32.0M | 3.14% |
| 9 | The First National Bank of Primghar | Bank | 1 | $29.9M | 2.93% |
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.02B | 9 | 13 | Security State Bank | 25.9% | 1,546 |
| 2025 | $994.2M | 9 | 13 | Security State Bank | 24.4% | 1,519 |
| 2024 | $936.2M | 9 | 13 | Security State Bank | 24.1% | 1,470 |
| 2023 | $902.1M | 9 | 13 | Security State Bank | 22.3% | 1,439 |
| 2022 | $920.0M | 9 | 13 | Security State Bank | 23.0% | 1,447 |
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.