Branch Network
Trailwest Bank Locations & Branches Lolo, Montana
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Trailwest Bank operates 15 branches from its headquarters in Lolo, MT, .
Trailwest Bank branch network
All 15 branches are in MONTANA, across 9 cities. Missoula, MT has the most of its branches, 5. Its largest office by deposits is its main office in Lolo, MT, with $256.4M (29.8% of its branch deposits). It had the same number of branches on June 30, 2025.
Trailwest Bank at a glance
Its CET1 capital ratio was 10.89% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $1.11B
- CET1 ratio, Q2 2026
- 10.89%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1982
Full financial profile · Is Trailwest Bank safe? · Trailwest Bank call report · Routing number
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: Lolo, MT (1 branch) | 1 of 2 | 91.6% | $256.4M |
| State: MT (15 branches) | 9 of 48 | 2.2% | $860.2M |
Ranked by total assets among banks headquartered in the state: Largest banks in Montana.
Share by county and metro area
Trailwest 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 |
|---|---|---|---|---|
| Missoula, MT (7 branches) | 4 of 11 | 11.0% | $435.4M | $3.95B |
| Ravalli, MT (4 branches) | 2 of 7 | 20.5% | $271.8M | $1.32B |
| Flathead, MT (2 branches) | 9 of 12 | 2.1% | $84.7M | $3.97B |
| Mineral, MT (2 branches) | 1 of 1 | 100.0% | $68.4M | $68.4M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Missoula, MT (7 branches) | 4 of 11 | 11.0% | $435.4M | $3.95B |
| Kalispell, MT (2 branches) | 9 of 12 | 2.1% | $84.7M | $3.97B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Trailwest Bank (main office) | Lolo, MT | 59847 | $256.4M |
| Ravalli Main Office | Hamilton, MT | 59840 | $203.8M |
| West One Bank Branch | Kalispell, MT | 59901 | $84.7M |
| Trailwest Bank Missoula Dearborn | Missoula, MT | 59804 | $69.0M |
| Superior Branch | Superior, MT | 59872 | $68.4M |
| Frenchtown Branch | Frenchtown, MT | 59834 | $64.7M |
| Milltown Branch | Missoula, MT | 59802 | $32.7M |
| Corvallis Branch | Corvallis, MT | 59828 | $32.6M |
| North Valley Branch at Super One Foods | Stevensville, MT | 59870 | $21.7M |
| Blodgett View Branch | Hamilton, MT | 59840 | $13.6M |
| Airway Boulevard Branch | Missoula, MT | 59808 | $12.7M |
| Evergreen Branch | Kalispell, MT | 59901 | $0 |
| Missoula Broadway Branch | Missoula, MT | 59808 | $0 |
| Missoula Downtown Branch | Missoula, MT | 59802 | $0 |
| St. Regis Branch | Saint Regis, MT | 59866 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 23806) · FFIEC NIC profile (RSSD 615954)