Location & Hours


Location & Hours

1st Security Bank is an independently owned bank with one branch located at 401 Main St. Roundup, MT 59072


We are located at 401 Main St. Roundup, MT 59072



  Monday – Thursday Friday Saturday Sunday
LOBBY HOURS 9:00 - 4:00 9:00 - 5:00 CLOSED CLOSED
DRIVE UP HOURS 8:00 - 5:00 8:00 - 5:30 8:30 – 12:30 CLOSED

Will be closed for federal holidays, contact us for more information


When you need cash on the go, stop by our local ATM machine located in the drive-up on our main building at 401 Main St. Roundup, MT 59072.

Have additional questions? Contact Us Today!

At 1st Security Bank, we try to build lasting relationships with our customers. From deposits to loan solutions, our friendly staff makes it a priority to work with our customers to find the best solution available.

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