First Interstate Bank

2.2
15 reviews
Exterior image of First Interstate Bank in Casper, Wyoming.

About

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First Interstate Bank in Mills, WY offers a comprehensive suite of personal and business products to take care of your diverse financial needs. Whether you’re a first-time home buyer looking for a mortgage, an established business looking to streamline your payment methods, or someone who is ready to plan your financial future, our local banking experts at the First Interstate Bank Casper Mills branch will help you reach your goals. First Interstate Bank is a community banking organization headquartered in Billings, Montana. With nearly 300 locations across our footprint, First Interstate is still run on the same principles as when it was founded by Homer Scott, Sr. in Sheridan, Wyoming in 1968 – to take the best possible care of our customers, our employees, and the places we call home. Today, our dedication to our founder’s values of customer satisfaction, creative management, productive employees, shareholders’ value and community involvement remains unwavering. Driven by strong corporate and family values, First Interstate is committed to providing exemplary customer service, exceeding customer expectations with our products and services, and supporting the communities we serve.

Details

  • Requires appointmentNot available
  • Drive-throughAvailable
  • Wheelchair accessible entranceAvailable

Location

First Interstate Bank
SW 300 Wyoming Blvd, Mills, WY
82644, United States

Hours

Reviews

2.2
15 reviews
5 stars
4
4 stars
0
3 stars
0
2 stars
2
1 star
9
  • TK
    T Kessel
    Sep 11, 2025
    1.0
    Can’t believe this place has any customers. Had issue with business mobile deposits. Threatening to pull business and personal accounts was only reason it was fixed (took a month). While depositing business and personal accounts, telling made us show ID, while two other customers inside and other drive through customers were not asked. Employee turn over is unbelievable! Definitely changing to another financial institution!
  • FB
    Frosty Bear
    Jul 7, 2024
    1.0
    That place changes employees like a revolving door. Poor service and a clueless bunch. The ATM is always broken. By far the worst group.
  • CM
    Coleen Miller
    Mar 9, 2022
    1.0
    Worst experience I have ever had trying to get an atv loan with Berdeena. Everyone definitely do an atv loan with your credit union for better interest with just a motorcycle title for collateral.
  • SS
    S
    May 18, 2021
    1.0
    Awful.
  • TG
    Tara Farm and Nursery Laurel Graham
    Jul 3, 2017
    5.0
    I've been working with this branch for well over ten years and for all my serious banking needs- business, personal, real estate, corporate- I cannot say enough good things. Completely recommend without hesitation.

Frequently Asked Questions About First Interstate Bank

What are the regular business hours for First Interstate Bank in Mills, WY?

The bank is open Monday through Friday from 9:00 AM to 5:00 PM and is closed on Saturdays and Sundays.

Is there a drive-through service available at the First Interstate Bank Mills branch?

Yes, the bank offers drive-through services Monday through Friday from 8:00 AM to 6:00 PM.