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Our mission is to help people and their money work better together.

How We Work

A home is more than a large investment: It’s your castle, your refuge, your personal corner of the world. And whether it’s your first home or your fifth, the buying process goes more smoothly when you’re dealing with a lender you can trust.

The mortgage specialists at First Interstate Bank can help make your dream home a reality. We’ll ask the right questions, listen to your needs and goals, and find the mortgage that’s right for you. With competitive rates and terms that fit your lifestyle, First Interstate Bank is your trusted choice for mortgage lending.

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Notification of Error & Requests for Information

Please Note: If you wish to contact us in writing to assert an error or make an information request, you must use the address below.

First Interstate Bank, Attention Loan Operations
P.O. Box 2345
Sioux Falls, SD 57101

First Intersate Bank Member of FDIC, Equal Housing Lender.

P rivacy Policy | Contact Us | About Us | Locations

Notification of Error & Requests for Information

Please Note: If you wish to contact us in writing to assert an error or make an information request, you must use the address below.

First Interstate Bank, Attention Loan Operations
P.O. Box 2345
Sioux Falls, SD 57101

First Intersate Bank Member of FDIC, Equal Housing Lender.