| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Cornerstone Bank | Bank | 2 | $146.1M | 28.29% |
| 2 | Cedar Rapids State Bank | Bank | 2 | $141.5M | 27.39% |
| 3 | Madison County Bank | Bank | 1 | $110.5M | 21.40% |
| 4 | Great Plains State Bank | Bank | 1 | $82.1M | 15.90% |
| 5 | Homestead Bank | Bank | 1 | $25.1M | 4.86% |
| 6 | First Bank and Trust of Fullerton | Bank | 1 | $11.1M | 2.16% |
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $516.5M | 6 | 8 | Cornerstone Bank | 28.3% | 2,290 |
| 2025 | $493.6M | 6 | 8 | Cornerstone Bank | 28.8% | 2,310 |
| 2024 | $458.6M | 6 | 7 | Cornerstone Bank | 31.1% | 2,315 |
| 2023 | $437.6M | 6 | 7 | Cornerstone Bank | 34.5% | 2,418 |
| 2022 | $462.5M | 6 | 7 | Cornerstone Bank | 43.3% | 2,777 |
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.