| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | D. L. Evans Bank | Bank | 3 | $384.0M | 36.13% |
| 2 | Idaho Central Credit Union | Credit union | 1 | $202.5M* | 19.05% |
| 3 | First Federal Savings Bank of Twin Falls | Bank | 2 | $134.5M | 12.66% |
| 4 | Zions Bancorporation, N.A. | Bank | 1 | $99.3M | 9.34% |
| 5 | Wells Fargo Bank, National Association | Bank | 1 | $70.8M | 6.66% |
| 6 | U.S. Bank National Association | Bank | 1 | $61.2M | 5.75% |
| 7 | KeyBank National Association | Bank | 1 | $50.8M | 4.78% |
| 8 | Lookout Federal Credit Union | Credit union | 1 | $40.2M* | 3.78% |
| 9 | The Bank of Commerce | Bank | 1 | $19.3M | 1.81% |
| 10 | Mini-Cassia Empl. Credit Union | Credit union | 1 | $483K* | 0.05% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.06B | 10 | 13 | D. L. Evans Bank | 36.1% | 2,034 |
| 2025 | $1.05B | 10 | 13 | D. L. Evans Bank | 35.5% | 2,020 |
| 2024 | $1.01B | 10 | 13 | D. L. Evans Bank | 32.1% | 1,825 |
| 2023 | $1.07B | 10 | 13 | D. L. Evans Bank | 32.7% | 2,030 |
| 2022 | $992.7M | 10 | 12 | Idaho Central Credit Union | 29.7% | 1,777 |
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