| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Wells Fargo Bank, National Association | Bank | 7 | $462.27B | 96.21% |
| 2 | The Bancorp Bank, National Association | Bank | 1 | $7.49B | 1.56% |
| 3 | First PREMIER Bank | Bank | 5 | $2.47B | 0.51% |
| 4 | The First National Bank in Sioux Falls | Bank | 13 | $1.43B | 0.30% |
| 5 | First Bank & Trust | Bank | 4 | $1.01B | 0.21% |
| 6 | First Interstate Bank | Bank | 10 | $954.6M | 0.20% |
| 7 | First Dakota National Bank | Bank | 3 | $860.2M | 0.18% |
| 8 | U.S. Bank National Association | Bank | 5 | $739.9M | 0.15% |
| 9 | Plains Commerce Bank | Bank | 3 | $408.6M | 0.09% |
| 10 | Black Hills Federal Credit Union | Credit union | 3 | $304.3M* | 0.06% |
| 21 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 | $480.47B | 31 | 102 | Wells Fargo Bank, National Association | 96.2% | 9,259 |
| 2025 | $362.66B | 31 | 101 | Wells Fargo Bank, National Association | 95.1% | 9,055 |
| 2024 | $368.75B | 32 | 101 | Wells Fargo Bank, National Association | 95.4% | 9,113 |
| 2023 | $305.69B | 31 | 101 | Wells Fargo Bank, National Association | 97.0% | 9,414 |
| 2022 | $239.35B | 30 | 103 | Wells Fargo Bank, National Association | 95.7% | 9,151 |
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.