| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Northwest Bank | Bank | 1 | $321.3M | 23.64% |
| 2 | GreenState Credit Union | Credit union | 1 | $250.2M* | 18.41% |
| 3 | First Interstate Bank | Bank | 2 | $165.3M | 12.16% |
| 4 | Wells Fargo Bank, National Association | Bank | 1 | $137.9M | 10.14% |
| 5 | Availa Bank | Bank | 1 | $95.9M | 7.06% |
| 6 | Security Savings Bank | Bank | 4 | $72.0M | 5.30% |
| 7 | First State Bank | Bank | 1 | $63.9M | 4.70% |
| 8 | Heartland Bank | Bank | 2 | $58.7M | 4.32% |
| 9 | United Bank of Iowa | Bank | 1 | $54.6M | 4.01% |
| 10 | Peoples Credit Union | Credit union | 2 | $54.1M* | 3.98% |
| 2 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $1.36B | 12 | 19 | Northwest Bank | 23.6% | 1,319 |
| 2024 | $1.38B | 12 | 19 | Northwest Bank | 23.5% | 1,325 |
| 2023 | $1.62B | 12 | 20 | GreenState Credit Union | 31.1% | 1,593 |
| 2022 | $1.66B | 12 | 20 | GreenState Credit Union | 34.3% | 1,732 |
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.