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First Interstate Bank in Longmont, CO 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 Longmont North Main Street 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.
Went in to close an account because their customer service has been horrible when calling. The one standing who was helping me was very kind, but the dark haired woman who sits at a desk across from them interrupted, confused everything, and provided a perfect example of why I will no longer be banking with first interstate.
MS
mariah sings
Jan 2, 2026
1.0
Came in to exhange small bills for big bills and no one was in the building, the lady was hiding in the back yelling for us and then when we asked for bills she grumpily came up front and said no as if we interrupted her sitting in the back lol what a “bank”
CS
Celeste Spencer
Jun 4, 2024
5.0
Kami Reiger the retail manager is a complete asset to First Interstate Bank! She's beyond proficient and adept at anticipating your needs and fulfilling them. She's a joy to interact with and I feel confident in her superb abilities in assisting me with all my banking needs.
JS
JuLi Ssa
Nov 4, 2022
5.0
This used to be great western bank. Same people very friendly.
BV
Bobby Vigil
Apr 27, 2017
2.0
Only reason I give 2 stars if for the few great customer service reps they have. Other than that I dislike everything about this bank. Let's start with some of the reps at different locations that make me feel like my businesses inconvenience to them. Sorry you have to do your job? There aren't any available reps after hours via phone like most large banks (24 service or at least weekend service). I have troubles on their website constantly. Won't tell you the charges made because of the way is listed. Shows pending charge, atm, debit. ... would be nice to verify the charge. And I've tried on the desktop as well as ipad. Same results. Running balance only allies the several charges, to a few days previous. So basically when you switch to previous pages it doesn't show your balance at that point in time. ' You do the math here 'is my understanding of it. Last, I've been locked out of my account for making several large purchases (under $1000) in a day, Christmas season. It was a Saturday. Luckily I had cash saved because I was unable to use my card until the next business day when I could reach them. A phone call would have been nice before locking my out. Very frustrated w this bank and will be transferring very very soon. Hope This helps.
Frequently Asked Questions About First Interstate Bank
What are the regular business hours for First Interstate Bank in Longmont?
First Interstate Bank is open Monday through Friday from 9:00 AM to 5:00 PM and closed on weekends.
Is the drive-thru at First Interstate Bank available on weekends?
No, the drive-thru service is available Monday through Friday from 9:00 AM to 5:00 PM and closed on Saturdays and Sundays.
Does First Interstate Bank offer online and mobile banking services?
Yes, they provide online banking, mobile banking, mobile deposit, remote deposit, and online bill pay.
What types of loans are offered by First Interstate Bank?
They offer personal loans, business loans, home loans, mortgages, construction loans, auto loans, and lines of credit.
Where is First Interstate Bank located in Longmont?
The bank is located at 2100 Main Street, Longmont, CO 80501, United States.
Is First Interstate Bank closed on any upcoming holidays?
Yes, the bank is closed on November 11, 2025; November 27, 2025; and December 25, 2025.
Can I find other banking options near First Interstate Bank on Main Street?
Yes, Great Western Bank is located nearby if you want to explore other banking services close to First Interstate Bank.
Are there dining options near First Interstate Bank for a meal before or after banking?
Yes, nearby restaurants include La Michoacana, Thai Kitchen, and Popeyes® Louisiana Kitchen for different food choices during your visit.
How can nearby health services be convenient when visiting First Interstate Bank?
Several doctors like Dwayne Strong PA-C, Susan Nelson FNP-C, and the Longmont Spine Center are near the bank, making it easy to handle banking and health appointments in one trip.
How can I contact First Interstate Bank for questions or appointments?
You can call the bank at +1 303-772-0777 or visit their website at https://locations.firstinterstatebank.com/co/longmont/2100-main-street.html for more information.
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