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First Security Bank

Our new mobile app is now available! Click here to download!

Take the first steps to becoming a Change Maker for good.

Open a Totally Free Checking Account and a $10 token
to make a positive impact in our community.

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Total Freedom

Totally Free Checking:
Anytime. Anywhere. Anywhy you need it.


Your New Online Banking Upgrade.

Say hello to a new and improved experience. 


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.