There are 10 FDIC-insured banks headquartered in Idaho, holding $11.98B in combined assets and $10.12B in deposits, alongside 26 NCUA-insured credit unions. Every figure below comes from the most recent quarterly call report each institution filed with its regulator. Banks are ranked by total assets, which is the standard measure of institution size and the basis regulators use for peer grouping and for determining which capital rules apply.
Ranked by total assets. Branch counts are domestic offices. Click any institution for eight quarters of financial history, peer benchmarking against similarly sized banks, deposit market share by county, and leadership contacts.
| # | Bank | City | Assets | Deposits | Branches |
|---|---|---|---|---|---|
| 1 | D. L. Evans Bank | Burley | $3.70B | $3.17B | 41 |
| 2 | The Bank of Commerce | Ammon | $2.34B | $1.93B | 17 |
| 3 | Northwest Bank | Boise | $1.45B | $1.10B | 6 |
| 4 | First Federal Savings Bank of Twin Falls | Twin Falls | $1.42B | $1.25B | 14 |
| 5 | Idaho First Bank | Mccall | $1.36B | $1.21B | 9 |
| 6 | Farmers Bank | Buhl | $678.4M | $563.4M | 6 |
| 7 | Ireland Bank | Malad City | $355.4M | $314.1M | 12 |
| 8 | Idaho Trust Bank | Boise | $255.6M | $225.5M | 2 |
| 9 | bankcda | Coeur D Alene | $238.9M | $210.3M | 7 |
| 10 | Twin River Bank | Lewiston | $173.0M | $150.5M | 4 |
NCUA-insured credit unions headquartered in Idaho, ranked by total assets, with member counts from 5300 call report filings.
| # | Credit union | City | Assets | Members |
|---|---|---|---|---|
| 1 | IDAHO CENTRAL | Chubbuck | $14.76B | 769,306 |
| 2 | POTLATCH NO. 1 FINANCIAL | LEWISTON | $2.13B | 127,567 |
| 3 | WESTMARK | Idaho Falls | $1.63B | 82,683 |
| 4 | CAPITAL EDUCATORS | MERIDIAN | $1.45B | 100,988 |
| 5 | PIONEER | MOUNTAIN HOME | $734.5M | 48,179 |
| 6 | FRONTIER | Idaho Falls | $711.5M | 52,110 |
| 7 | FREEDOM NORTHWEST | KAMIAH | $645.2M | 12,915 |
| 8 | BEEHIVE | Rexburg | $626.8M | 33,500 |
| 9 | TRUGROCER | Boise | $316.5M | 22,136 |
| 10 | LOOKOUT | Pocatello | $298.3M | 25,848 |
| 11 | ADVANTAGE PLUS | Pocatello | $280.6M | 21,400 |
| 12 | COTTONWOOD COMMUNITY | Cottonwood | $278.9M | 10,021 |
| 13 | LEWIS CLARK | Lewiston | $276.0M | 22,352 |
| 14 | CONNECTIONS | pocatello | $254.6M | 19,494 |
| 15 | CLARITY | Nampa | $223.5M | 19,103 |
| 16 | LATAH | MOSCOW | $164.0M | 8,193 |
| 17 | NORTHWEST CHRISTIAN | NAMPA | $104.2M | 5,131 |
| 18 | RAILS WEST | Pocatello | $76.6M | 7,538 |
| 19 | IDAHO UNITED | Boise | $72.9M | 5,835 |
| 20 | SIMPLOT | POCATELLO | $58.8M | 5,516 |
| 21 | MEMBERS PREFERRED | IDAHO FALLS | $58.1M | 4,332 |
| 22 | SEI | POCATELLO | $33.5M | 3,162 |
| 23 | ST JOE VALLEY | ST MARIES | $14.0M | 1,150 |
| 24 | SNAKE RIVER | Twin Falls | $12.5M | 1,281 |
| 25 | BOISE FIRE DEPARTMENT | Boise | $8.8M | 1,007 |
| 26 | MINI-CASSIA EMPL. | Burley | $528,114 | 341 |
Deposit market share is measured at the county level from the FDIC Summary of Deposits, an annual branch-level filing as of each June 30. County data shows which institutions actually hold balances in a given market and how concentrated that market is — a question state-level totals cannot answer, because a bank can be small statewide and dominant in its home county.
Vault republishes public FDIC and NCUA filings without modification. Bank figures come from quarterly call reports; credit union figures from NCUA 5300 filings; branch and deposit market share from the FDIC Summary of Deposits. Data is free to access and free to cite, with no login or paywall. The same data is available to AI agents through a public Model Context Protocol server at vaultbot.ai/mcp.