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Mississippi County, Missouri

Mississippi County profile, demographic data, and geographic information.

Mississippi County is a county located in Missouri, United States of America. As of official census estimates, it has a reported population of 12,003. The land area covers 411.61 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Mississippi County
Official Title: County Clerk
Address: PO BOX 369, CHARLESTON MO 63834-0369

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 12,003 — 2025 / Census
Median Age 41.1 yrs ±1.5 2020-2024 / Census ACS 5-Year 2024
Total Households 4,482 ±158 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 5,272 ±27
Occupied Housing Units 4,482 ±158
Vacant Housing Units 790 ±154
Median Home Value $109,000 ±$8,462
Median Gross Rent $762 ±$80
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $48,160 ±$7,079
Per Capita Income $24,081 ±$1,589
Poverty Rate 19% ±3.9%
Population Below Poverty Level 2,002 ±412
Unemployment Rate 2.7% ±2%
Civilian Labor Force, Employed 4,539 ±279
Broadband Internet Rate 91.5% ±2.3%
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 CAIRO 3N, IL US, located 16.1 miles from Mississippi County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 43.4° 26.0° 34.7° 3.80" —
February 48.2° 29.5° 38.9° 3.88" —
March 58.6° 37.6° 48.1° 4.85" —
April 69.9° 47.5° 58.7° 5.38" —
May 78.3° 57.7° 68.0° 5.08" —
June 85.9° 66.1° 76.0° 4.37" —
July 88.7° 69.6° 79.2° 4.10" —
August 87.8° 67.5° 77.6° 3.18" —
September 81.7° 59.6° 70.6° 3.51" —
October 70.9° 47.7° 59.3° 4.14" —
November 57.9° 37.4° 47.6° 4.46" —
December 46.7° 30.1° 38.4° 4.25" —
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: 29133. • 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.