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First Security Bank

In honor of Memorial Day, we will be closed on May 29th.  We remember and honor those who have made the ultimate sacrifice for our freedom.

Get a 4-month CD

with a 5.08% APY*

Act fast, our CD rates are available for a limited time only!

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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Financial Calculators

Tools to help you better understand your finances.

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Fraud Protection

 Learn how to protect yourself from fraud with good habits.

calendar iconHoliday Schedule

While we try to be open as much as possible, we do close a few days out of the year.

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Financial Foundations for Adults

Employment Opportunities

Donation request form

With branches in Missoula, Hamilton, Corvallis, Stevensville, Thompson Fall and Plains, First Security Bank proudly serves MIssoula, Sanders and Ravalli Counties.