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Contact information

Gallatin County: 406-585-3800
Toll Free: 800-555-3800
Mailing Address:
PO Box 910
Bozeman, MT 59771
Our Locations: First Security Bank Locations

Since we know problems can arise after hours, we are pleased to offer extended after hours and weekend support for Debit Cards and Online Banking related inquires. 

After Hours, Weekend, and Holiday Support

Toll Free: 855-262-9847
Weekdays: 5:00 pm - 11:00 pm (MST)
9:00 am - 5:00 pm (MST)
New Year's Day, Martin Luther King Day, President's Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, Christmas Day