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Madison County, Ohio

Madison County profile, demographic data, and geographic information.

Madison County is a county located in Ohio, United States of America. As of official census estimates, it has a reported population of 46,985. The land area covers 466.69 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Madison County
Official Title: Clerk
Address: 1 N MAIN ST, LONDON OH 43140-1068

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 46,985 — 2025 / Census
Median Age 41.5 yrs ±0.4 2020-2024 / Census ACS 5-Year 2024
Total Households 15,686 ±241 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 16,519 ±46
Occupied Housing Units 15,686 ±241
Vacant Housing Units 833 ±235
Median Home Value $250,100 ±$11,895
Median Gross Rent $943 ±$51
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $87,045 ±$4,302
Per Capita Income $38,124 ±$1,249
Poverty Rate 8.5% ±1.3%
Population Below Poverty Level 3,376 ±536
Unemployment Rate 3.5% ±1%
Civilian Labor Force, Employed 20,902 ±639
Broadband Internet Rate 90.7% ±1.7%
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 LONDON FISH HATCHERY, OH US, located 5.8 miles from Madison County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 33.2° 18.6° 25.9° 3.12" —
February 36.7° 20.6° 28.6° 2.28" —
March 47.7° 28.5° 38.1° 3.70" —
April 61.1° 38.5° 49.8° 4.05" —
May 71.3° 49.8° 60.5° 4.67" —
June 79.3° 59.6° 69.5° 4.71" —
July 82.2° 62.6° 72.4° 4.96" —
August 80.9° 60.5° 70.7° 2.87" —
September 75.7° 52.8° 64.2° 2.91" —
October 64.0° 41.1° 52.5° 2.83" —
November 49.8° 31.8° 40.8° 2.96" —
December 38.5° 24.0° 31.3° 3.22" —
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: 39097. • 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.