Horsepower for your
home loan.
Protect your interest rate with our Extended Lock
financing with Float-Down options.*
Our business is keeping yours in the black.
Totally Free Business Checking. Totally a win.
There’s no ‘Silicon’ in our valley.
Here, your accounts are protected and safe.
You can bank on long-standing financial stability and security.
Here for Life.
Your new adventure starts here.
It's time to make a bold move. Let our Home Loan specialists finance your dreams.
Conversions for Kids
Impacting families, one friend at a time with Friends of the Children-Montana. For every Griz 3rd down conversion, we’re donating to this local non-profit.
Learn how to grow your money.
Our free Financial Foundations course makes it easy for you to gain a solid understanding of key financial concepts. We are committed to helping you build a strong financial future.
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Holiday Schedule
While we try to be open as much as possible, we do close a few days out of the year.
Financial Foundations for Adults
With branches in Missoula, Hamilton, Corvallis, Stevensville, Thompson Fall and Plains, First Security Bank proudly serves MIssoula, Sanders and Ravalli Counties.