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Madison County, OH

9 cities and towns and 7 ZIP codes in Madison County, Ohio.

Population

44,423

Land area

467sq mi

People per sq mi

95

ZIP codes

7

Cities and towns in Madison County

Madison County at a glance

  • Madison County is 67% less dense than Ohio as a whole.
  • The median household income is $87,045, 22% above the Ohio median of $71,389.
  • A typical owner-occupied home is valued at $250,100 (16% above Ohio) and median rent is $943 a month.
  • Its largest cities are London (10,484), West Jefferson (4,392) and Plain City (3,829).

Local data for Madison County, OH

Counts from official public data

Housing and community stats

Madison County, OH, American Community Survey 2020-2024

Full profile

Median household income

$87,045

Poverty rate

8.5%

Median home value

$250,100

Prices +4.8% in a year

Median rent

$943/mo

Homeownership

77.5%

Bachelor's or higher

24.2%

Median age

41.5

Average commute

24.9 min

Largest reported origins and ancestries: German Americans (10,650), Irish Americans (6,574), Italian Americans (1,298).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.0%

Aug 2026, -0.9 pts in a year

Average annual pay

$56,556

24,269 jobs, 2025

Income per person

$55,980

BEA, 2024

Federal spending

$257M

FY 2026, $5,869 per person

PPP loans

$117M

1,250 loans, 12,851 jobs reported

Campaign donations

$297K

Itemized, 2026 cycle

EconomyFederal spendingPPP loans

How people get to work

Madison County, OH, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone75.3%
  • Carpooled7.6%
  • Public transit0.2%
  • Walked1.1%
  • Bicycle0.0%
  • Taxi, ride-hailing, motorcycle or other0.6%
  • Worked from home15.2%

Average one-way commute: 24.9 minutes for people who do not work from home.

Environment and hazard risk

Madison County, OH, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: ice storm

Storm events since 1996

358

Most often thunderstorm wind

Flood insurance policies

38

0.3% of homes, county

July high / Jan low

82° / 19°F

42.3 inches of rain a year

Hazards, floods and storm historyCheck a flood zone7 historic places

Health statistics

Share of adults in Madison County, OH, CDC PLACES estimates

All 40 measures

Obesity

37.3%

U.S. 33.3% +4.0 pts

Diabetes

12.4%

U.S. 12.1% about the same

Smoking

16.5%

U.S. 12.8% +3.7 pts

Uninsured (18-64)

8.4%

U.S. 11.1% -2.7 pts

Cities, towns and ZIP codes in Madison County

Population shown

Frequently asked questions

What is the largest city in Madison County, OH?
London is the largest city or town in Madison County, with about 10,484 residents.
How many ZIP codes are in Madison County?
Madison County includes 7 ZIP Code Tabulation Areas, including 43029, 43064, 43140, 43143, 43151.
What is the population of Madison County, OH?
About 44,423 people live in Madison County, based on American Community Survey 5-year estimates.
What counties border Madison County?
Madison County borders Franklin County, Greene County, Clark County, Union County, Pickaway County, Champaign County, Fayette County.

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023