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Menard County, Illinois

Menard County profile, demographic data, and geographic information.

Menard County is a county located in Illinois, United States of America. As of official census estimates, it has a reported population of 11,863. The land area covers 314.39 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Menard County
Official Title: Menard County Treasurer
Address: PO BOX 436, PETERSBURG IL 62675-0436

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 11,863 — 2025 / Census
Median Age 42.8 yrs ±1.2 2020-2024 / Census ACS 5-Year 2024
Total Households 5,228 ±116 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 5,600 ±25
Occupied Housing Units 5,228 ±116
Vacant Housing Units 372 ±110
Median Home Value $185,500 ±$8,458
Median Gross Rent $885 ±$166
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $82,176 ±$3,121
Per Capita Income $41,446 ±$3,500
Poverty Rate 10.1% ±2.9%
Population Below Poverty Level 1,210 ±349
Unemployment Rate 3.5% ±1.3%
Civilian Labor Force, Employed 5,598 ±249
Broadband Internet Rate 90.2% ±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 PETERSBURG 1E, IL US, located 2.2 miles from Menard County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 34.4° 17.3° 25.9° 2.02" 5.4"
February 39.3° 20.5° 29.9° 1.75" 2.7"
March 50.8° 30.3° 40.6° 2.51" 1.4"
April 63.7° 41.3° 52.5° 4.09" 0.5"
May 73.7° 53.3° 63.5° 4.61" 0.0"
June 82.2° 62.3° 72.3° 4.14" 0.0"
July 85.5° 65.4° 75.5° 3.87" 0.0"
August 84.5° 62.7° 73.6° 3.66" 0.0"
September 78.8° 54.9° 66.9° 3.12" 0.0"
October 66.3° 43.0° 54.7° 3.19" 0.0"
November 51.5° 32.1° 41.8° 2.76" 1.2"
December 39.1° 22.6° 30.9° 1.93" 4.0"
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: 17129. • 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.