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Flathead County, Montana

Flathead County profile, demographic data, and geographic information.

Flathead County is a county located in Montana, United States of America. As of official census estimates, it has a reported population of 115,429. The land area covers 5,087.30 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Flathead County
Official Title: County Administrator
Address: 800 S MAIN ST, KALISPELL MT 59901-5420

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 115,429 — 2025 / Census
Median Age 42.2 yrs ±0.4 2020-2024 / Census ACS 5-Year 2024
Total Households 44,233 ±567 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 51,680 ±69
Occupied Housing Units 44,233 ±567
Vacant Housing Units 7,447 ±555
Median Home Value $535,500 ±$17,031
Median Gross Rent $1,142 ±$42
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $73,925 ±$2,517
Per Capita Income $41,557 ±$1,553
Poverty Rate 9.3% ±1%
Population Below Poverty Level 10,201 ±1,109
Unemployment Rate 2.9% ±0.6%
Civilian Labor Force, Employed 54,271 ±930
Broadband Internet Rate 91.2% ±1.4%
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 HUNGRY HORSE DAM, MT US, located 3.5 miles from Flathead County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 30.5° 19.9° 25.2° 3.62" —
February 34.1° 19.8° 27.0° 2.53" —
March 43.1° 25.4° 34.3° 3.21" —
April 52.5° 32.2° 42.4° 2.65" —
May 63.7° 40.5° 52.1° 2.87" —
June 70.9° 47.1° 59.0° 3.82" —
July 82.3° 52.9° 67.6° 1.42" —
August 81.4° 51.8° 66.6° 1.23" —
September 69.1° 43.7° 56.4° 2.21" —
October 52.2° 34.8° 43.5° 3.52" —
November 37.7° 27.5° 32.6° 3.88" —
December 30.6° 21.0° 25.8° 3.66" —
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: 30029. • 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.