| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | First National Bank, Ames, Iowa | Bank | 3 | $674.3M | 18.48% |
| 2 | U.S. Bank National Association | Bank | 2 | $353.0M | 9.67% |
| 3 | South Story Bank & Trust | Bank | 4 | $346.8M | 9.50% |
| 4 | Availa Bank | Bank | 2 | $328.9M | 9.01% |
| 5 | Wells Fargo Bank, National Association | Bank | 1 | $267.0M | 7.32% |
| 6 | Greater Iowa Credit Union | Credit union | 4 | $246.8M* | 6.76% |
| 7 | VISIONBANK OF IOWA | Bank | 4 | $184.4M | 5.05% |
| 8 | State Bank & Trust Co. | Bank | 1 | $174.3M | 4.78% |
| 9 | Bankers Trust Company | Bank | 1 | $168.1M | 4.61% |
| 10 | First Interstate Bank | Bank | 3 | $136.7M | 3.75% |
| 16 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 |
|---|---|---|---|---|---|---|
| 2026 | $3.65B | 26 | 47 | First National Bank, Ames, Iowa | 18.5% | 828 |
| 2025 | $3.62B | 26 | 47 | First National Bank, Ames, Iowa | 17.5% | 811 |
| 2024 | $3.51B | 26 | 48 | First National Bank, Ames, Iowa | 18.9% | 848 |
| 2023 | $3.75B | 26 | 48 | First National Bank, Ames, Iowa | 18.4% | 827 |
| 2022 | $3.70B | 25 | 49 | First National Bank, Ames, Iowa | 18.7% | 832 |
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.