| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Security State Bank | Bank | 2 | $243.0M | 24.44% |
| 2 | Savings Bank | Bank | 2 | $159.7M | 16.06% |
| 3 | Iowa State Bank | Bank | 3 | $151.4M | 15.22% |
| 4 | Citizens State Bank | Bank | 1 | $139.8M | 14.06% |
| 5 | Peoples Bank | Bank | 1 | $117.9M | 11.86% |
| 6 | Sanborn Savings Bank | Bank | 1 | $65.1M | 6.55% |
| 7 | The Security National Bank of Sioux City, Iowa | Bank | 1 | $56.8M | 5.72% |
| 8 | United Community Bank | Bank | 1 | $31.4M | 3.16% |
| 9 | The First National Bank of Primghar | Bank | 1 | $29.1M | 2.93% |
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 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 | $832.0M | 8 | 12 | Security State Bank | 24.2% | 1,621 |
| 2022 | $847.4M | 8 | 12 | Security State Bank | 25.0% | 1,632 |
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.