Hardin County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 72nd-largest in Ohio
The population of Hardin County, Ohio is 30,527 as of the 2023 American Community Survey, making it the 72nd-largest county in Ohio. The median household income is $58,001, the median home value is $134,800, and the median age is 35.3.
The population of Hardin County has declined 5.4% since 2010 (32,126 → 30,402), a -0.39% annualized rate.
30,527
Population
-0.39%
Annual growth
65
People / sq mi
$58,001
Median Income
$134,800
Median Home Value
Hardin County covers 470 sq mi of land at 64.9 people per square mile.
About Hardin County, OH
Hardin County is a county in Ohio with a population of 30,527. It ranks #72 among counties in Ohio by population. The median age is 35.3, younger than the national median. The population is 49.6% male and 50.4% female.
The median household income in Hardin County is $58,001, below the US median of $74,580. 11.4% of residents live below the federal poverty level. Home values sit at a median of $134,800, with monthly rent averaging $733. The homeownership rate of 73.3% is higher than the national rate of 64.8%.
Educational attainment in Hardin County reflects 18.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 24.0 minutes each way.
Hardin County Population History (2010-2024)
The county of Hardin County had a population of 32,126 in 2010 and 30,402 in 2024, a -5.4% growth over 14 years. The peak was 32,126 in 2010. Average annual growth rate: -0.39%.
30,402
Population (2024)
32,126
Population (2010)
32,126
Peak (2010)
-0.39%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 32,126 |
| 2011 | 31,805 |
| 2012 | 31,630 |
| 2013 | 31,743 |
| 2014 | 31,780 |
| 2015 | 31,615 |
| 2016 | 31,374 |
| 2017 | 31,338 |
| 2018 | 31,417 |
| 2019 | 31,369 |
| 2020 | 30,722 |
| 2021 | 30,444 |
| 2022 | 30,400 |
| 2023 | 30,406 |
| 2024 | 30,402 |
Race & Ethnicity
| White | 93.4% |
| Black or African American | 1.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Age & Sex
35.3
Median Age
50.4%
Female
49.6%
Male
16.0%
Age 65+
Age Distribution
Children (under 15): 19.3% · Seniors (65+): 16.0%
Income & Poverty
| Median household income | $58,001$-11,679 vs state |
| Mean household income | $74,502 |
| Per-capita income | $29,509 |
| Poverty rate | 11.4%+2.2% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 58.1% |
Top Industries by Employment
The largest employment sector in Hardin County is manufacturing, accounting for 26.4% of workers.
How residents commute
0.0%
Drive alone
5.1%
Carpool
81.5%
Public transit
5.0%
Work from home
24.0 min
Avg commute
Housing
$134,800$-64,400 vs state
Median home value
$733
Median rent
73.3%
Homeownership rate
12,921
Total housing units
90.6%
Occupied
9.4%
Vacant
26.7%
Renter-occupied
Social & access
88.1%
With health insurance
91.6%
With broadband internet
14.2%
Foreign-born
7.3%
Veterans (18+)
13.2%
With a disability
94.0%
Speak language other than English at home
Education
91.7%
High School+
18.9%
Bachelor's+
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Part of Ohio
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County rankings
Frequently Asked Questions
Hardin County, Ohio has a population of 30,527 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 72nd-largest county in Ohio. Population density is 65 people per square mile.
The population of Hardin County has declined 5.4% since 2010 (32,126 → 30,402), a -0.39% annualized rate.
The median household income in Hardin County, Ohio is $58,001, with mean (average) household income of $74,502 and per-capita income of $29,509. 11.4% of residents live below the federal poverty level.
In Hardin County, the largest racial and ethnic groups are White (93.4%), Hispanic or Latino (1.6%), Black or African American (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Hardin County, Ohio is 35.3 years. Residents are 50.4% female and 49.6% male.
The median home value in Hardin County is $134,800 and median monthly rent is $733. 73.3% of occupied housing units are owner-occupied. The county has 12,921 total housing units, 9.4% of which are vacant.
The largest employment sector in Hardin County, Ohio is manufacturing, employing 26.4% of workers. The unemployment rate is 2.5%.
Columbus is among the largest cities associated with Hardin County, Ohio, with a population of 906,480.
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Statewide data for Ohio
Population, race, income, age, and trends across Ohio
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.