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Twin River Bank Locations & Branches Lewiston, Idaho
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Twin River Bank operates 4 branches from its headquarters in Lewiston, ID, .
Twin River Bank branch network
Its 4 branches span 2 states and 3 cities. The most are in IDAHO (2) and WASHINGTON (2). IDAHO holds 65.0% of its branch deposits. Lewiston, ID has the most of its branches, 2. Its largest office by deposits is its main office in Lewiston, ID, with $70.6M (46.9% of its branch deposits). It had the same number of branches on June 30, 2025.
Twin River Bank at a glance
Its CET1 capital ratio was 19.44% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $173.0M
- CET1 ratio, Q2 2026
- 19.44%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1979
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Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Lewiston, ID (2 branches) | 4 of 7 | 13.6% | $97.7M |
| State: ID (2 branches) | 25 of 29 | 0.2% | $97.7M |
Ranked by total assets among banks headquartered in the state: Largest banks in Idaho.
Share by county and metro area
Twin River Bank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Nez Perce, ID (2 branches) | 4 of 7 | 13.6% | $97.7M | $719.2M |
| Asotin, WA (2 branches) | 4 of 5 | 17.7% | $52.7M | $298.6M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Lewiston, ID-WA (4 branches) | 4 of 8 | 14.8% | $150.5M | $1.02B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Twin River Bank (main office) | Lewiston, ID | 83501 | $70.6M |
| Clarkston Branch | Clarkston, WA | 99403 | $33.7M |
| Orchards Branch | Lewiston, ID | 83501 | $27.1M |
| Asotin Branch | Asotin, WA | 99402 | $19.1M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 22993) · FFIEC NIC profile (RSSD 427960)