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Washington County, Mississippi

Washington County profile, demographic data, and geographic information.

Washington County is a county located in Mississippi, United States of America. As of official census estimates, it has a reported population of 40,446. The land area covers 724.15 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Washington County
Official Title: County Administrator
Address: 910 COURTHOUSE LN, GREENVILLE MS 38701-3712

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 40,446 — 2025 / Census
Median Age 38 yrs ±0.7 2020-2024 / Census ACS 5-Year 2024
Total Households 17,113 ±384 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 20,867 ±39
Occupied Housing Units 17,113 ±384
Vacant Housing Units 3,754 ±380
Median Home Value $104,000 ±$7,270
Median Gross Rent $833 ±$36
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $42,165 ±$3,051
Per Capita Income $25,149 ±$1,298
Poverty Rate 26.4% ±2.7%
Population Below Poverty Level 11,088 ±1,124
Unemployment Rate 6.3% ±1.6%
Civilian Labor Force, Employed 16,324 ±723
Broadband Internet Rate 50.2% ±2.9%
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 STONEVILLE EXP STN, MS US, located 11.1 miles from Washington County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 52.6° 34.3° 43.4° 5.55" 0.2"
February 57.3° 37.6° 47.4° 5.59" 0.2"
March 65.9° 44.9° 55.4° 5.41" 0.0"
April 75.4° 53.8° 64.6° 6.05" 0.0"
May 83.7° 63.4° 73.5° 4.84" 0.0"
June 89.8° 70.4° 80.1° 4.07" 0.0"
July 92.1° 72.7° 82.4° 4.01" 0.0"
August 92.5° 70.9° 81.7° 3.12" 0.0"
September 88.2° 64.6° 76.4° 3.51" 0.0"
October 77.7° 53.3° 65.5° 4.18" 0.0"
November 65.1° 43.3° 54.2° 4.49" 0.0"
December 55.4° 37.1° 46.2° 5.25" 0.0"
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: 28151. • 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.