First Interstate Bank
Overview
First Interstate Bank is an FDIC-insured bank. Bankular currently lists 273 branch locations.
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.
Locations
Find a branch of First Interstate Bank
Missoula South
3502 Brooks St, Missoula, Montana, 59801
Full-service branch · Opened November 30, 1992
Address and directions →Mitchell Branch
714 S Burr St, Mitchell, South Dakota, 57301
Full-service branch · Opened July 18, 1955
Address and directions →Mobridge Branch
505 N Main St, Mobridge, South Dakota, 57601
Full-service branch · Opened October 1, 1934
Address and directions →Morristown Branch
302 Main St, Morristown, South Dakota, 57645
Full-service branch · Opened January 1, 1909
Address and directions →Mount Ayr Branch
100 E South St, Mount Ayr, Iowa, 50854
Full-service branch · Opened January 1, 1934
Address and directions →Mount Pleasant Branch
102 S Main St, Mount Pleasant, Iowa, 52641
Full-service branch · Opened March 1, 1992
Address and directions →Mountain Home Branch
400 N 3rd E, Mountain Home, Idaho, 83647
Full-service branch · Opened January 1, 1920
Address and directions →Nampa 12Th
804 12th Ave S, Nampa, Idaho, 83651
Full-service branch · Opened October 20, 1998
Address and directions →Nebraska City Branch
1016 Central Ave, Nebraska City, Nebraska, 68410
Full-service branch · Opened January 1, 1907
Address and directions →Nevada Branch
404 Lincoln Hwy, Nevada, Iowa, 50201
Full-service branch · Opened October 1, 1954
Address and directions →New Underwood Branch
404 S A Ave, New Underwood, South Dakota, 57761
Full-service branch · Opened January 2, 1941
Address and directions →Newport Branch
10 S Coast Hwy, Newport, Oregon, 97365
Full-service branch · Opened January 1, 1890
Address and directions →Financial overview
Latest reported figures
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% |
Explore the institution
More on First Interstate Bank
Use the available Bankular sections to move from institution identity to products, locations, market context and source verification.
Frequently asked questions
Is First Interstate Bank federally insured?
Yes. Bankular identifies this institution in FDIC records under certificate .
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.