Bank BranchesEvery insured bank office · FDIC · 1994–2026

Bank Branches › Montana › Big Horn County

Banks in Big Horn County, Montana

Big Horn County has 2 bank offices, 2 fewer than its peak of 4 in 1994 (−50%). They belong to 2 banks, led by First Interstate Bank with 1.

2
offices, 2026
4
peak (1994)
2
no longer reported
$311M
deposits booked

Map

open (2)no longer reported (1 of 2 have map coordinates)

The county's passbook

241994: 4 offices, $73.3M1995: 4 offices, $71.2M1996: 4 offices, $73.5M1997: 4 offices, $73.2M1998: 4 offices, $80.2M1999: 4 offices, $78.8M2000: 4 offices, $76.2M2001: 4 offices, $74.3M2002: 4 offices, $74.4M2003: 4 offices, $74.2M2004: 4 offices, $80.6M2005: 4 offices, $78.8M2006: 4 offices, $80.1M2007: 4 offices, $84.6M2008: 4 offices, $92.2M2009: 4 offices, $95.9M2010: 4 offices, $97.4M2011: 4 offices, $97.7M2012: 4 offices, $104M2013: 4 offices, $106M2014: 4 offices, $114M2015: 4 offices, $129M2016: 3 offices, $128M2017: 3 offices, $126M2018: 3 offices, $122M2019: 3 offices, $123M2020: 3 offices, $138M2021: 2 offices, $177M2022: 2 offices, $164M2023: 2 offices, $192M2024: 2 offices, $248M2025: 2 offices, $293M2026: 2 offices, $311Mpeak 4 · 1994$311M1995200020052010201520202026
Bank offices reporting on June 30Deposits booked at them (nominal dollars, own scale)
Big Horn County1994–2026
DateofficesChangeDeposits
Jun 30 1994PEAK4$73.3M
Jun 30 19954·$71.2M
Jun 30 20004·$76.2M
Jun 30 20054·$78.8M
Jun 30 20104·$97.4M
Jun 30 20154·$129M
Jun 30 20203·$138M
Jun 30 20252·$293M
Jun 30 2026NOW2·$311M
Open the full passbook — all 33 years ▾
DateofficesChangeDeposits
Jun 30 1994PEAK4$73.3M
Jun 30 19954·$71.2M
Jun 30 19964·$73.5M
Jun 30 19974·$73.2M
Jun 30 19984·$80.2M
Jun 30 19994·$78.8M
Jun 30 20004·$76.2M
Jun 30 20014·$74.3M
Jun 30 20024·$74.4M
Jun 30 20034·$74.2M
Jun 30 20044·$80.6M
Jun 30 20054·$78.8M
Jun 30 20064·$80.1M
Jun 30 20074·$84.6M
Jun 30 20084·$92.2M
Jun 30 20094·$95.9M
Jun 30 20104·$97.4M
Jun 30 20114·$97.7M
Jun 30 20124·$104M
Jun 30 20134·$106M
Jun 30 20144·$114M
Jun 30 20154·$129M
Jun 30 20163−1$128M
Jun 30 20173·$126M
Jun 30 20183·$122M
Jun 30 20193·$123M
Jun 30 20203·$138M
Jun 30 20212−1$177M
Jun 30 20222·$164M
Jun 30 20232·$192M
Jun 30 20242·$248M
Jun 30 20252·$293M
Jun 30 2026NOW2·$311M

Banks in Big Horn County

BankOfficesDeposits here
First Interstate Bank1$94.5M
Little Horn State Bank1$217M

Every bank office open in Big Horn County

BankAddressOpenedDeposits
Little Horn State Bank835 N Center AveHardin 590341919$217M
First Interstate BankHardin Branch1101 North Center AvenueHardin 590341974$94.5M

Sorted by deposits booked on June 30, 2026. "Opened" is the establishment date in the FDIC record.

Offices no longer reported

Offices in Big Horn County that filed a report in some year from 1994 on and are missing from 2026. Most closed; some were sold to non-banks or converted. Newest departures first.

Last bank on the signAddressLast reportPeak deposits
First Interstate Bank402 North Center AvenueHardin 590342020$78.7M
Western Security Bank524 N. CheyenneHardin 590341999$9.0M

County FIPS 30003 · 4,998 square miles of land (2024 Census Gazetteer).