First Interstate Bank branch locations
274 active branches in FDIC records across 10 states.
By state
Largest branches by deposits (2025)
- 401 N 31st St, Billings, MT$1.2B
- 101 E Front St, Missoula, MT$595M
- 225 S Main Ave, Sioux Falls, SD$502M
- 10101 University Ave, Clive, IA$374M
- 1100 Nw Wall St, Bend, OR$370M
- 323 E Main St, Riverton, WY$365M
- 802 W Broadway Ave, Jackson, WY$363M
- 104 S Wolcott St, Casper, WY$347M
- 333 West Blvd, Rapid City, SD$320M
- 2601 10th Ave S, Great Falls, MT$309M
- 221 E Ivinson Ave, Laramie, WY$304M
- 9290 W Dodge Rd, Omaha, NE$261M
- 2800 W Main St, Bozeman, MT$259M
- 222 S Gillette Ave, Gillette, WY$253M
- 1200 Main St, Sturgis, SD$244M
- 4 S Main St, Sheridan, WY$240M
- 25 E Lyndale Ave, Helena, MT$238M
- 202 W Main St, Bozeman, MT$226M
- 154 Sw 6th St, Redmond, OR$212M
- 730 Main St, Billings, MT$202M
- 830 Shiloh Crossing Blvd, Billings, MT$191M
- 421 W Riverside Ave, Spokane, WA$185M
- 401 W 19th St, Cheyenne, WY$185M
- 2 Main St, Kalispell, MT$184M
- 306 Spokane Ave, Whitefish, MT$184M
Locations and branch deposits transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. Verify hours and services with the bank before visiting.