| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Blackhawk Bank & Trust | Bank | 12 | $1.08B | 20.23% |
| 2 | I. H. Mississippi Valley Credit Union | Credit union | 7 | $914.0M* | 17.08% |
| 3 | Vibrant Credit Union | Credit union | 3 | $543.2M* | 10.15% |
| 4 | Old National Bank | Bank | 2 | $346.1M | 6.47% |
| 5 | Quad City Bank and Trust Company | Bank | 1 | $248.5M | 4.64% |
| 6 | American Bank and Trust Company, National Association | Bank | 4 | $245.0M | 4.58% |
| 7 | TBK BANK, SSB | Bank | 7 | $233.7M | 4.37% |
| 8 | Empeople Credit Union | Credit union | 4 | $227.8M* | 4.26% |
| 9 | R.I.A. Federal Credit Union | Credit union | 4 | $215.6M* | 4.03% |
| 10 | CBI Bank & Trust | Bank | 2 | $170.4M | 3.18% |
| 17 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 | $5.35B | 27 | 71 | Blackhawk Bank & Trust | 20.2% | 991 |
| 2024 | $5.05B | 27 | 70 | Blackhawk Bank & Trust | 19.8% | 993 |
| 2023 | $4.82B | 27 | 69 | I. H. Mississippi Valley Credit Union | 22.6% | 1,087 |
| 2022 | $5.24B | 27 | 69 | I. H. Mississippi Valley Credit Union | 20.8% | 1,020 |
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.