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Marion County, OH

8 cities and towns and 8 ZIP codes in Marion County, Ohio.

Population

65,020

Land area

404sq mi

People per sq mi

161

ZIP codes

8

Cities and towns in Marion County

Full map

Marion County at a glance

  • Marion County is 44% less dense than Ohio as a whole.
  • The median household income is $59,371, 17% below the Ohio median of $71,389.
  • A typical owner-occupied home is valued at $156,800 (27% below Ohio) and median rent is $864 a month.
  • Its largest cities are Marion (35,669), Prospect (1,157) and La Rue (725).

Local data for Marion County, OH

Counts from official public data

Housing and community stats

Marion County, OH, American Community Survey 2020-2024

Full profile

Median household income

$59,371

Poverty rate

16.6%

Median home value

$156,800

Prices +4.0% in a year

Median rent

$864/mo

Homeownership

67.5%

Bachelor's or higher

14.7%

Median age

40.1

Average commute

24.5 min

Largest reported origins and ancestries: German Americans (13,050), Irish Americans (8,046), Italian Americans (1,604).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.7%

Sep 2026, -0.6 pts in a year

Average annual pay

$56,200

23,441 jobs, 2025

Income per person

$47,315

BEA, 2024

Federal spending

$384M

FY 2026, $5,873 per person

PPP loans

$87.5M

1,202 loans, 10,708 jobs reported

Campaign donations

$159K

Itemized, 2026 cycle

EconomyFederal spendingPPP loans

How people get to work

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

  • Drove alone82.3%
  • Carpooled8.6%
  • Public transit0.7%
  • Walked0.9%
  • Bicycle0.2%
  • Taxi, ride-hailing, motorcycle or other1.0%
  • Worked from home6.2%

Average one-way commute: 24.5 minutes for people who do not work from home.

Environment and hazard risk

Marion County, OH, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Low

Top: cold wave

Storm events since 1996

390

Most often thunderstorm wind

Flood insurance policies

183

0.7% of homes, county

July high / Jan low

84° / 18°F

39.4 inches of rain a year

Hazards, floods and storm historyCheck a flood zone12 historic places

Health statistics

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

All 40 measures

Obesity

44.2%

U.S. 33.3% +10.9 pts

Diabetes

14.8%

U.S. 12.1% +2.7 pts

Smoking

19.6%

U.S. 12.8% +6.8 pts

Uninsured (18-64)

9.5%

U.S. 11.1% -1.6 pts

Cities, towns and ZIP codes in Marion County

Population shown

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Frequently asked questions

What is the largest city in Marion County, OH?
Marion is the largest city or town in Marion County, with about 35,669 residents.
How many ZIP codes are in Marion County?
Marion County includes 8 ZIP Code Tabulation Areas, including 43302, 43314, 43322, 43332, 43337.
What is the population of Marion County, OH?
About 65,020 people live in Marion County, based on American Community Survey 5-year estimates.
What counties border Marion County?
Marion County borders Delaware County, Union County, Crawford County, Morrow County, Hardin County, Wyandot County.

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

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