| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | American Bank & Trust | Bank | 2 | $270.8M | 34.81% |
| 2 | Dakotaland Federal Credit Union | Credit union | 4 | $198.3M* | 25.49% |
| 3 | First National Bank | Bank | 1 | $107.6M | 13.83% |
| 4 | Wells Fargo Bank, National Association | Bank | 1 | $106.3M | 13.67% |
| 5 | M O Federal Credit Union | Credit union | 1 | $34.8M* | 4.48% |
| 6 | Heartland State Bank | Bank | 1 | $19.8M | 2.55% |
| 7 | BMO Bank National Association | Bank | 1 | $17.4M | 2.24% |
| 8 | Huron Area Education Federal Credit Union | Credit union | 1 | $16.4M* | 2.10% |
| 9 | Dakota Rail Line Federal Credit Union | Credit union | 1 | $4.2M* | 0.54% |
| 10 | Hb Telco Federal Credit Union | Credit union | 1 | $2.2M* | 0.29% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $778.0M | 10 | 14 | American Bank & Trust | 34.8% | 2,276 |
| 2025 | $743.4M | 10 | 14 | American Bank & Trust | 35.0% | 2,273 |
| 2024 | $744.5M | 10 | 15 | American Bank & Trust | 31.8% | 2,025 |
| 2023 | $811.1M | 11 | 16 | American Bank & Trust | 25.2% | 1,766 |
| 2022 | $798.3M | 11 | 17 | Dakotaland Federal Credit Union | 24.8% | 1,731 |
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.