Last Updated — 23rd Jan, 2023
First Interstate Bank login: The first interstate bank was established in 1968 when its founder, Homer Scott, Sr., purchased the Bank of Commerce in Sheridan, Wyoming. First Interstate Bank is a community banking organization headquartered in Billings, Montana. With more than 150 locations in Idaho, Montana, Oregon, South Dakota, Washington, and Wyoming, First Interstate still operates on the same principles, founded in 1968 by Homer Scott, Sr., in Sheridan, Wyoming. Potentially to take care of our customers, our employees, and the places we call home.
Scott incorporated the company in Montana in 1971 and over the next 10 years acquired two more banks and established six de novo banks in Montana and Wyoming. In 1996, Wells Fargo acquired First Interstate Bancorp, but not First Interstate Bank. Instead, the Montana organization successfully negotiated to retain the famous First Interstate name and logo. In 2017, the company retained the right to use the First Interstate name and logo in all 50 states.
The bank acquired Cascade Bancorp in 2017 and Northwest Bancorp, Inc. in 2018. It expanded into Idaho, Oregon, and Washington—parent companies of Bank of the Cascades and Inland Northwest Bank, respectively. In 2019, Idaho Independent and Community First Bank joined the company, officially becoming the First Interstate Bank in June of that year. As of 2021, First Interstate has 150 branches in Idaho, Oregon, Montana, South Dakota, Washington, and Wyoming.
In September 2021, First Interstate announced a merger with South Dakota-based Great Western Bank, Sioux Falls. The merger was completed on February 1, 2022, making Great Western an operating division of First Interstate Bank; Great Western locations will become the first interstate bank branches on May 23, 2022.
If you are an existing First Interstate Bank customer, you can register for First Interstate Bank Internet Banking services for daily access to your account book. What’s more, you can say goodbye to frequent visits to the bank or ATM for transactions. You can also pay your bills online. Here are the step-by-step procedures to log in to your account, reset your password and register for Internet Banking services. Kindly read our complete article and avail internet banking services.
About First Interstate Bank
Type | Public |
Industry | Financial services |
Founded | Sheridan, Wyoming, United States (1968) |
Headquarters | 401 N 31st, Billings, Montana, 59101, United States |
Key people | David L. Jahnke (Chairman) Kevin P. Riley (President and CEO) |
Number of employees | 2,460 |
Routing Number | 092901683 |
First Interstate Bank Branch and ATM Locations | Find Branch & ATM Location |
First Interstate Bank Mobile App | Apple (IOS), Android |
Telephone Number | 888-752-3332 |
Website | https://www.firstinterstatebank.com/ |
How to Login to First Interstate Bank Online?
Let us know, how to login to First Interstate Bank online. To log in to First Interstate Bank online, follow the steps we have provided below.
1: First of all visit the official website of First Interstate Bank.
2: On the First Interstate Bank homepage, click on “Online Banking“.

3: Enter your username and password in the blank space. Then click on “Login“.
5: You are login successfully into First Interstate Bank.
Note: I truly want to believe that you can easily sign in to First Interstate Bank by following the above advances. And you can enjoy all the services in your account. If you encounter any problems logging in to First Interstate Bank, you can contact First Interstate Bank Customer Service directly: 1-855-342-3400
How To Retrieve First Interstate Bank Forgotten Username?
Let us know how to reset First Interstate Bank Username online. Follow the below given easy steps to successfully reset First Interstate Bank Portal Username.
1: First of all visit the official website of First Interstate Bank.
2: On the First Interstate Bank homepage, click on “Online Banking“.

3: Then click on Forgot Login in the Login section.

4: On the next page, you click on I forgot my username.
5: After clicking on I forgot my username, Enter the email address that you use for online banking.

6: After filling in your Email Address correctly, click on the Send button.
7: Banks will email you your username after successfully verifying your details.
Note: I truly want to believe that you can without much of a stretch reset your Username in First Interstate Bank by following the above advances. In the event that you deal with any issue resetting your Username in First Interstate Bank, you can straightforwardly contact First Interstate Bank customer care: 1-855-342-3400
How To Retrieve First Interstate Bank Forgotten Password?
Let us know how to reset First Interstate Bank password online. Follow the below given easy steps to successfully reset First Interstate Bank Portal Password:
1: First of all visit the official website of First Interstate Bank.
2: On the First Interstate Bank homepage, click on “Online Banking“.

3: Then click on Forgot Login in the Login section.

4: Enter your online banking mobile number and username. Then click the “Send me a new password” button.
5: Banks will email you your Password after successfully verifying your details.
Note: I truly want to believe that you can without much of a stretch reset your Password in First Interstate Bank by following the above advances. In the event that you deal with any issue resetting your Password in First Interstate Bank, you can straightforwardly contact First Interstate Bank customer care: 1-855-342-3400
Manage First Interstate Bank Online
- View account balances.
- View and search 24 months of transaction history.
- View copies of cleared checks.
- Transfer funds between your First Interstate accounts.
- Pay bills*
- Easily pay other people with Popmoney.
- Deposit checks.
- Access the app via Touch ID.
First Interstate Bank Office Hours
Mon | 9:00 AM – 4:00 PM | |
Tue | 9:00 AM – 4:00 PM | |
Wed | 9:00 AM – 4:00 PM | |
Thu | 9:00 AM – 4:00 PM | |
Fri | 9:00 AM – 4:00 PM | |
Sat | Closed | |
Sun | Closed |
First Interstate Bank Holidays Closures
The chart below shows the federal holidays on which First Interstate Bank is closed, and other financial institutions are closed on similar holidays.
Holiday | 2023 | 2024 | 2025 | 2026 |
New Year’s Day | January 1** | January 1 | January 1 | January 1 |
Martin Luther King Jr. Day | January 16 | January 15 | January 20 | January 19 |
Washington’s Birthday (Presidents Day) | February 20 | February 19 | February 17 | February 16 |
Memorial Day | May 29 | May 27 | May 26 | May 25 |
Juneteenth National Independence Day | June 19 | June 19 | June 19 | June 19 |
Independence Day | July 4 | July 4 | July 4 | July 4* |
Labor Day | September 4 | September 2 | September 1 | September 7 |
Columbus Day | October 9 | October 14 | October 13 | October 12 |
Veterans Day | November 11* | November 11 | November 11 | November 11 |
Thanksgiving Day | November 23 | November 28 | November 27 | November 26 |
Christmas Day | December 25 | December 25 | December 25 | December 25 |
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