Madison County Map, Ohio

Written and Fact-checked by | Updated On: April 30, 2026 | 13:31 ET

Map of Madison County - Madison County is a county located in the U.S. state of Ohio. Madison County Map showing cities, highways, important places and water bodies. Get Where is Madison County located in the map, major cities in Madison county, population, areas, and places of interest.

Map of Madison County, Ohio

Map of Madison County, Ohio

About Madison County Map, Ohio: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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About Madison County, Ohio

Madison County is a county located in the U.S. state of Ohio. It's county seat is London. As per 2020 census, the population of Madison County is 44386 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 465.44 sq mi (1,205 km2). Madison County was established on -32811.

Madison County Facts

ContinentNorth America
CountryUnited States
StateOhio
County SeatLondon
Largest City/TownLondon
EstablishedMarch 1, 1810
Total Area466 sq mi (1,207 sq km)
Land Area466 sq mi (1,207 sq km)
Water Area0.6 sq mi (1.6 sq km)
Population44,731 (Census 2020)
Population Density96 people per sq mi
Time ZoneEastern Time Zone (ET)
Major HighwaysI-70, US-40, US-42, State Route 38, State Route 56
Neighboring CountiesClark County, Champaign County, Union County, Franklin County, Fayette County, Greene County
Famous ForAgriculture, rural landscapes, proximity to Columbus
Top AttractionsMadison Lake State Park, London Historic District, Prairie Grass Trail, Choctaw Lake
Official Websitehttps://co.madison.oh.us/

Cities and Towns in Madison County, Ohio

  • London (county seat) – 10,103 (Census 2020)
  • Plain City (partly) – 4,225 (Census 2020)
  • West Jefferson – 4,222 (Census 2020)
  • Mount Sterling – 1,950 (Census 2020)

Roads and Highways in Madison County, Ohio

Madison County is well connected by highways that link it to Columbus and central Ohio.

  • I-70 – major east-west interstate connecting Columbus to Springfield and beyond
  • US-40 – historic route paralleling I-70 through the county
  • US-42 – runs north-south connecting London to Columbus and Cincinnati
  • State Route 38 – connects London to Springfield and Washington Court House
  • State Route 56 – runs east-west linking London to Urbana and Circleville

Neighboring Counties of Madison County

  • Union County (north)
  • Champaign County (northwest)
  • Clark County (west)
  • Greene County (southwest)
  • Fayette County (south)
  • Franklin County (east)

Top Attractions in Madison County, Ohio

Madison County offers a mix of outdoor recreation, local history, and small-town charm.

  • Madison Lake State Park – popular for boating, fishing, and picnicking
  • Prairie Grass Trail – scenic trail for biking and walking
  • London Historic District – charming downtown with shops and local landmarks
  • Choctaw Lake – private lake community with recreational opportunities
  • Deer Creek region nearby – outdoor area with hiking and nature
  • West Jefferson parks – local green spaces and recreation areas
  • Madison County Fairgrounds – hosts annual fairs and events
  • Mount Sterling Historic Area – small-town setting with historic charm

Distance from Madison County to Nearby Cities

  • Madison County to Columbus – 25 mi (40 km)
  • Madison County to Springfield – 20 mi (32 km)
  • Madison County to Dayton – 45 mi (72 km)
  • Madison County to Cincinnati – 85 mi (137 km)
  • Madison County to Chillicothe – 50 mi (80 km)

FAQs about Madison County

Where is Madison County located?

Madison County is located in central Ohio, west of Columbus.

What is Madison County known for?

It is known for agriculture, rural landscapes, and its proximity to Columbus.

What is the population of Madison County?

The population was 44,731 according to the 2020 Census.

What is the county seat of Madison County?

The county seat is London.

Are there outdoor attractions in Madison County?

Yes, the county offers parks, trails, and lake-based recreation.