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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.
As a business, the way you’re paying your vendors may be costing you more than you realize. The Payments experts at First Interstate Bank will work with your business to put safe, efficient, easy to use purchasing tools in place that can assist with controlling expenses and cash flow.
Commercial loans can be available for almost any business purpose, including starting a business, operating or expanding a business, or running a large corporation. First Interstate Bank will help you through the commercial loan process to make sure that you get the right loan for your business needs.
Whether you’re buying your first home or improving the one you live in, it’s important to choose a loan that suits your needs. Navigating how to choose that loan can be daunting. The Home Loans experts at First Interstate Bank will help make the process easy and understandable from start to finish.
From home loans, auto loans and recreational (RV and boat) loans to debt consolidation, home equity loans, and personal lines of credit, First Interstate Bank offers a wide variety of personal loans to suit your financing needs.
With First Interstate’s mobile app, you can check your account and loan balances, keep track of expenses, transfer money between accounts, schedule one-time or recurring payments through Bill Pay, pay people instantly with Popmoney, and more. Bank wherever life takes you—all from the palm of your hand.
Credit cards can be great tools for bringing convenience, value, and financial security to your everyday. First Interstate’s FirstRewards® World Mastercard® offers real-time fraud text alerts, Mastercard Zero Liability, and reward points which can be redeemed for travel or gift cards to your favorite local businesses to, amongst other great features.
Merchant Services is a convenient, cost-effective, and secure payment processing solution allowing your business to accept credit and debit cards. Whether you need payment solutions for in-person or online transactions, integrated terminals, or gift cards, First Interstate can help with a single-source solution for all your payment transactions.
Make all your payments to companies and individuals in one, convenient place. Guarantee on-time payments, track transactions, set payment alerts, and reduce your financial paper trail by eliminating paper checks and even paper statements when you sign up for Bill Pay through First Interstate’s Online Banking.
Home Loans
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Home Loans
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It’s time for your dream home to become your everyday home.
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Whether buying a home, building new, or refinancing your mortgage, First Interstate offers a variety of home mortgage programs with competitive interest rates. Explore your options and pre-qualify today.
Whether you’re a sole proprietor with an entrepreneurial spirit or a third-generation rancher, our experienced relationship managers have the know-how you need. Let’s take your business to the next level with online banking, merchant services, treasury solutions, business credit cards, business loans, and more.
Whether you need checking, bill pay, basic savings, or retirement solutions, we've got you covered with money management tools right at your fingertips. Here’s to saving, spending, and keeping every day happening.
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!
JG
Jesabell Genesis
Aug 23, 2024
2.0
Though this doesn't pertain specifically to this branch, but to first interstate as a whole. It's extremely frustrating how often I cannot access my online banking. "Service unavailable, no account information found" especially on weekends. We live in a digital world where hackers are better than ever and it's terrifying the amount of accumulated time I'm unable to see or access my online banking. Every other aspect of this bank is "normal", but this one aspect alone may be enough for me to switch banks.
MS
michael snider
Jul 9, 2022
1.0
Why are all 3 locations closed on Saturday now. Other banks are open
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.
Is the First Interstate Bank branch in Mills, WY open on holidays?
The bank is closed on holidays including November 11, November 27, and December 25, 2025.
What types of banking products are offered at this First Interstate Bank location?
They offer a wide range of products including personal checking, savings, credit cards, loans (personal, business, auto, home, construction), merchant services, wealth management, and commercial banking products.
What banking services can I access at the Mills branch of First Interstate Bank?
Services include mobile and online banking, mobile and remote deposit, drive-up and ATM access, online bill pay, loan services, escrow, treasury services, ACH and wire transfers.
Does the First Interstate Bank in Mills have wheelchair accessible entrances?
Yes, this bank location has wheelchair accessible entrances to accommodate customers with mobility needs.
Can I visit the First Interstate Bank without an appointment?
Yes, the Mills branch does not require appointments for banking services; you can visit during regular hours at your convenience.
What nearby dining options are available near First Interstate Bank in Mills?
Nearby restaurants include Taco John's, Full House Chinese Restaurant, BB'sQ barbecue, TCBY frozen yoghurt shop, Blimpie, Subway sandwich shop, and Philly's Steak N' Company burger restaurant for a variety of dining experiences.
Are there any nearby automotive services close to First Interstate Bank in Mills?
Yes, you can find automotive services nearby such as Hansen Qwik Lube Inc and Hansen Quik Lube for oil changes and auto repairs, as well as multiple gas stations like Exxon and Common Cents Store.
What convenient nearby stores can I visit when banking at First Interstate Bank in Mills?
Close to the bank, you can shop at Off The Beaten Path antique and thrift store, Common Cents Store convenience and clothing store, and Norco Industrial retail store for various needs.
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