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Fergus County, Montana

Fergus County profile, demographic data, and geographic information.

Fergus County is a county located in Montana, United States of America. As of official census estimates, it has a reported population of 11,825. The land area covers 4,339.33 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Fergus County
Official Title: Commissioner
Address: 712 W MAIN ST, SUITE 202, LEWISTOWN MT 59457-2561

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 11,825 — 2025 / Census
Median Age 44.4 yrs ±0.8 2020-2024 / Census ACS 5-Year 2024
Total Households 5,303 ±195 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 6,012 ±61
Occupied Housing Units 5,303 ±195
Vacant Housing Units 709 ±183
Median Home Value $236,100 ±$24,690
Median Gross Rent $954 ±$87
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $63,706 ±$4,994
Per Capita Income $35,574 ±$2,143
Poverty Rate 15.1% ±3.7%
Population Below Poverty Level 1,722 ±423
Unemployment Rate 4.2% ±1.9%
Civilian Labor Force, Employed 5,851 ±227
Broadband Internet Rate 85.6% ±3%
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 LEWISTOWN 11ESE, MT US, located 14.9 miles from Fergus County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 32.8° 14.8° 23.8° 0.76" —
February 33.1° 15.0° 24.1° 0.88" —
March 41.0° 21.6° 31.3° 1.19" —
April 49.0° 29.3° 39.1° 2.07" —
May 58.6° 38.0° 48.3° 3.78" —
June 66.8° 46.1° 56.4° 3.55" —
July 77.3° 53.7° 65.5° 1.87" —
August 77.6° 53.4° 65.5° 1.75" —
September 67.2° 44.3° 55.8° 1.68" —
October 52.5° 34.4° 43.4° 1.54" —
November 39.2° 23.8° 31.5° 1.03" —
December 33.6° 17.2° 25.4° 0.85" —
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: 30027. • 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.