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Big Horn County, Montana

Big Horn County profile, demographic data, and geographic information.

Big Horn County is a county located in Montana, United States of America. As of official census estimates, it has a reported population of 12,752. The land area covers 4,997.78 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Big Horn County
Official Title: Administrative Assistant
Address: PO BOX 908, HARDIN MT 59034-0908

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 12,752 — 2025 / Census
Median Age 31.9 yrs ±0.7 2020-2024 / Census ACS 5-Year 2024
Total Households 3,827 ±105 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 4,527 ±19
Occupied Housing Units 3,827 ±105
Vacant Housing Units 700 ±105
Median Home Value $143,400 ±$14,230
Median Gross Rent $697 ±$99
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $58,750 ±$2,019
Per Capita Income $22,861 ±$2,240
Poverty Rate 22.1% ±4%
Population Below Poverty Level 2,780 ±504
Unemployment Rate 13.2% ±2.7%
Civilian Labor Force, Employed 4,700 ±325
Broadband Internet Rate 82.7% ±3.8%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at WYOLA 1 SW, MT US, located 20.5 miles from Big Horn County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 38.1° 10.4° 24.2° 0.39" —
February 40.9° 11.9° 26.4° 0.41" —
March 51.4° 20.9° 36.2° 0.73" —
April 60.5° 29.2° 44.9° 2.08" —
May 70.7° 37.9° 54.3° 3.85" —
June 80.7° 48.1° 64.4° 2.09" —
July 90.0° 52.2° 71.1° 1.67" —
August 87.4° 49.3° 68.4° 0.67" —
September 77.6° 40.2° 58.9° 1.41" —
October 61.0° 29.1° 45.0° 1.83" —
November 47.2° 19.1° 33.1° 0.81" —
December 38.1° 11.2° 24.7° 0.54" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 30003. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.