First Interstate Bank
Headquarters: Billings, Montana
Overview
First Interstate Bank is an FDIC-insured bank headquartered in Billings, Montana. It reported $25.79B in assets and $21.73B in deposits for the period ending June 30, 2026. Bankular currently lists 273 branch locations.
What Bankular checked
These dates identify the official records and review steps supporting this profile.
Quarterly change
What changed since the previous report
March 31, 2026 to June 30, 2026
These comparisons use consecutive official regulatory reporting periods. A change is descriptive and is not a recommendation or safety rating.
Financial indicators
Capital, profitability and credit quality
These are the latest reported capital, profitability and credit-quality measures available for this institution. Read the figures together rather than as a single safety rating.
Branch footprint
Where First Interstate Bank has branches
Explore the cities with the most currently listed locations. Branch hours can change, so confirm current lobby, drive-through and appointment hours with the institution before visiting.
Locations
Find a branch of First Interstate Bank
Aberdeen East
1805 6th Ave SE, Aberdeen, South Dakota, 57401
Full-service branch · Opened October 1, 1934
Aberdeen West
119 6th Ave SE, Aberdeen, South Dakota, 57401
Full-service branch · Opened April 28, 1983
Absarokee Branch
3 S Woodard Ave, Absarokee, Montana, 59001
Full-service branch · Opened May 6, 1963
Airway Heights Branch
11917 W Sunset Hwy, Airway Heights, Washington, 99001
Full-service branch · Opened May 1, 1993
Albany Branch
224 W Wood St, Albany, Missouri, 64402
Full-service branch · Opened January 1, 1870
Altoona Branch
2770 8th St SW, Altoona, Iowa, 50009
Full-service branch · Opened December 13, 2004
Financial overview
Latest reported figures
Through June 30, 2026
Financial trends
How the balance sheet has changed
Compare recent quarters to see the direction of assets, deposits and loans.
| Quarter | Assets | Deposits | Net loans | ROA |
|---|---|---|---|---|
| June 30, 2026 | $25.79B | $21.73B | $14.10B | 1.21% |
| March 31, 2026 | $26.36B | $22.20B | $14.60B | 1.02% |
| December 31, 2025 | $26.57B | $22.40B | $15.08B | 1.20% |
| September 30, 2025 | $27.25B | $22.91B | $15.93B | 1.03% |
| June 30, 2025 | $27.49B | $23.02B | $16.48B | 0.97% |
| March 31, 2025 | $28.20B | $22.99B | $17.16B | 0.81% |
| December 31, 2024 | $29.07B | $23.29B | $17.64B | 0.85% |
| September 30, 2024 | $29.53B | $23.14B | $17.82B | 0.87% |
Size and reach
How this institution compares
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More on First Interstate Bank
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Branch locations
273 listed locations.
Explore →Compare this institution
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Explore →State banking market
Explore institutions and deposit-market context in Montana.
Explore →Billings banking market
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Explore →Rankings and research
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Explore →Sources and methodology
Review the official sources and reporting periods.
Explore →Frequently asked questions
Is First Interstate Bank federally insured?
Yes. Bankular identifies this institution in FDIC records under certificate 1105.
Where is First Interstate Bank headquartered?
First Interstate Bank is headquartered in Billings, Montana, at 401 N 31st St, Billings, Montana, 59101.
How large is First Interstate Bank?
It reported $25.79B in assets and $21.73B in deposits for the period ending June 30, 2026.
How many locations does First Interstate Bank have?
Bankular currently lists 273 branch locations for this institution.
Data sources and methodology
Bankular combines official regulatory records with institution-published product information. The detailed sources are available below for readers who want to verify a figure.