| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Decorah Bank & Trust Company | Bank | 2 | $552.6M | 41.68% |
| 2 | Waukon State Bank | Bank | 2 | $194.9M | 14.70% |
| 3 | Luana Savings Bank | Bank | 1 | $135.0M | 10.18% |
| 4 | Citizens Savings Bank | Bank | 2 | $115.9M | 8.74% |
| 5 | Fidelity Bank & Trust | Bank | 2 | $87.0M | 6.56% |
| 6 | Dutrac Community Credit Union | Credit union | 1 | $73.7M* | 5.56% |
| 7 | BMO Bank National Association | Bank | 2 | $51.1M | 3.86% |
| 8 | CUSB Bank | Bank | 1 | $46.4M | 3.50% |
| 9 | Kerndt Brothers Savings Bank | Bank | 1 | $40.7M | 3.07% |
| 10 | Northeast Security Bank | Bank | 1 | $28.6M | 2.15% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.33B | 10 | 15 | Decorah Bank & Trust Company | 41.7% | 2,248 |
| 2025 | $1.21B | 10 | 15 | Decorah Bank & Trust Company | 41.7% | 2,244 |
| 2024 | $1.12B | 9 | 14 | Decorah Bank & Trust Company | 44.2% | 2,474 |
| 2023 | $1.13B | 11 | 16 | Decorah Bank & Trust Company | 42.6% | 2,270 |
| 2022 | $1.08B | 11 | 16 | Decorah Bank & Trust Company | 39.1% | 2,041 |
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.