First Interstate Bank in USA has 73 branches in 44 Towns. Most of them are located in Helena (6 branches), Billings (6 branches), Bozeman (4 branches), Great Falls (3 branches) and Casper (3 branches).
First Interstate Bank RivertonFirst Interstate Bank LivingstonFirst Interstate Bank HamiltonFirst Interstate Bank Jackson3 branchesFirst Interstate Bank GardinerFirst Interstate Bank BelgradeFirst Interstate Bank Billings6 branchesFirst Interstate Bank Gillette2 branchesFirst Interstate Bank ColumbusFirst Interstate Bank LaurelFirst Interstate Bank Helena6 branchesFirst Interstate Bank BuffaloFirst Interstate Bank Sheridan2 branchesFirst Interstate Bank MillsFirst Interstate Bank EdgemontFirst Interstate Bank Great Falls3 branchesFirst Interstate Bank Hot SpringsFirst Interstate Bank HardinFirst Interstate Bank Sturgis2 branchesFirst Interstate Bank CusterFirst Interstate Bank EurekaFirst Interstate Bank Rapid City2 branchesFirst Interstate Bank Sioux FallsFirst Interstate Bank BigforkFirst Interstate Bank Hill CityFirst Interstate Bank New UnderwoodFirst Interstate Bank Belle FourcheFirst Interstate Bank Spearfish2 branchesFirst Interstate Bank DeadwoodFirst Interstate Bank LeadFirst Interstate Bank Red LodgeFirst Interstate Bank AbsarokeeFirst Interstate Bank Miles CityFirst Interstate Bank ColstripFirst Interstate Bank Lame DeerFirst Interstate Bank Bozeman4 branchesFirst Interstate Bank Kalispell3 branchesFirst Interstate Bank WhitefishFirst Interstate Bank PolsonFirst Interstate Bank Missoula2 branchesFirst Interstate Bank Cheyenne2 branchesFirst Interstate Bank Laramie2 branchesFirst Interstate Bank Casper3 branchesFirst Interstate Bank Lander