55 Lone Peak Drive
Big Sky, MT 59716
Lobby open 9am to 5pm Monday to Friday. Drive-thru open 8am to 5:30pm Monday to Friday.
First Security Bank, the area's largest locally-owned and operated community bank, has been serving local customers since 1919. We offer business, real estate, and consumer loans, internet banking, brokerage services, and a full range of deposit accounts. First Security Bank has seven convenient branch locations and the most ATM locations in Gallatin County.
In Big Sky Town Center, just off Fire Pit Park.