Skip Navigation Download Acrobat Reader 5.0 or higher to view PDF files.

First Security Bank

Join our Team. Apply today

The teller and drive-thru services at our Southgate branch are currently under construction. Please use our Dearborn branch across the street during this time. We apologize for the inconvenience.

Get the scoop!

Come into any branch Friday August 6th from noon-4pm and get a free scoop.

Helpful tools and services just for you

Girls in jeep

Where hi-fives and Monday mornings meet. 

We are looking for talented professionals who want to excel in their career.

Lobby information.

For information about the locations and procedures in those lobbies, click below.

Make the easy switch.

Find out how our five step switch kit makes it easy for you to move your accounts over to First Security Bank.
Swipe to See More

calculator icon

Financial Calculators

Tools to help you better understand your finances.

security lock icon

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.

Swipe to See More
playing guitar

Financial Foundations for Adults

Employment Opportunities

Donation request form

First Security Bank proudly serves MIssoula, Sanders and Ravalli Counties.