Demographics of Hardin County, Ohio

Hardin County, Ohio had 30,072 people on July 1, 2025, by the Census Bureau’s estimate: −652 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Hardin County, in four figures

30,072
Population: July 1, 2025, Vintage 2025 estimate.; −2.1%
Change since July 2020: −652 people.; 35.2 ±0.4
Median age: ACS 2020–⁠2024.; $62,484 ±$3,305
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Hardin County, Ohio's population shrank 2.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Hardin County, Ohio's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Hardin County, Ohio's population shrank 2.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Hardin County, Ohio's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	30,724	100.0	100.0
2021	30,417	99.0	100.2
2022	30,367	98.8	100.7
2023	30,411	99.0	101.6
2024	30,254	98.5	102.5
2025	30,072	97.9	103.1

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Population of Hardin County, Ohio on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	30,724	+33	−2	0	+25
2021	30,417	−307	−73	+11	−246
2022	30,367	−50	−124	+39	+53
2023	30,411	+44	−16	+39	+26
2024	30,254	−157	−8	+40	−189
2025	30,072	−182	−16	−2	−164

Age, 2020–2024

The median age is 35.2 ±0.4: for men 34.2 ±0.6 and for women 35.9 ±0.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Hardin County by age, ACS 2020–2024
Age	People	Share	Ohio	United States
Under 5	1,800 ±61	5.9% ±0.2	5.7% ±<0.1	5.6% ±<0.1
5 to 17	5,167 ±311	17.0% ±1.0	16.3% ±0.1	16.3% ±<0.1
18 to 24	4,936 ±356	16.2% ±1.2	8.9% ±0.1	9.1% ±<0.1
25 to 44	6,489 ±287	21.3% ±0.9	25.7% ±0.1	26.9% ±<0.1
45 to 64	7,164 ±302	23.5% ±1.0	25.1% ±0.1	24.8% ±<0.1
65 and over	4,919 ±329	16.1% ±1.1	18.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $62,484 ±$3,305, and income per person $32,470 ±$1,918, in 2024 dollars. The median is $71,389 ±$321 in Ohio and $80,734 ±$166 in the United States.

Households by income

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Households in Hardin County by income, ACS 2020–2024
Household income	Households	Share	Ohio	United States
Under $25,000	1,912 ±333	16.3% ±2.8	16.3% ±0.2	14.6% ±<0.1
$25,000 to $49,999	2,682 ±335	22.9% ±2.8	19.1% ±0.2	16.7% ±<0.1
$50,000 to $74,999	2,247 ±326	19.2% ±2.8	16.9% ±0.1	15.5% ±<0.1
$75,000 to $99,999	1,498 ±253	12.8% ±2.1	13.1% ±0.1	12.6% ±<0.1
$100,000 to $149,999	2,088 ±307	17.8% ±2.6	17.1% ±0.1	17.5% ±<0.1
$150,000 to $199,999	718 ±163	6.1% ±1.4	8.3% ±0.1	9.6% ±<0.1
$200,000 or more	579 ±136	4.9% ±1.2	9.1% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Hardin County by age, ACS 2020–2024
Age	Below poverty	Rate	Ohio	United States
All ages	4,912 ±909	17.3% ±3.2	13.3% ±0.2	12.5% ±0.1
Under 18	1,858 ±413	27.9% ±5.6	17.8% ±0.3	16.1% ±0.1
18 to 59	2,478 ±481	16.2% ±3.1	12.7% ±0.2	11.6% ±0.1
60 and over	576 ±145	9.0% ±2.2	10.6% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Hardin County, ACS 2020–2024
Measure	Hardin County	Ohio	United States
Housing units	12,917 ±45	5,292,391 ±464	143,775,355 ±10,234
Occupied	90.8% ±1.9	91.9% ±0.2	89.9% ±0.1
Vacant	9.2% ±1.9	8.1% ±0.2	10.1% ±0.1
Owner occupied	74.7% ±2.6	67.2% ±0.3	65.2% ±0.3
Renter occupied	25.3% ±3.0	32.8% ±0.2	34.8% ±0.1
Median home value	$151,200 ±$9,357	$214,800 ±$742	$332,700 ±$236
Median gross rent	$793 ±$46	$1,034 ±$5	$1,413 ±$2
Median year built	1969 ±3	1970 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Hardin County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Ohio	United States
Hispanic or Latino	732 ±0	2.4% ±<0.1	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	28,236 ±128	92.7% ±0.4	75.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	385 ±131	1.3% ±0.4	12.0% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	228 ±60	0.7% ±0.2	2.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	8 to 62	< 0.1% to 0.2%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 46	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	7 to 115	< 0.1% to 0.4%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	775 ±190	2.5% ±0.6	4.3% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Hardin County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Ohio	United States
Born in the state	25,843 ±542	84.8% ±1.8	74.6% ±0.1	57.3% ±<0.1
Born in another state	4,283 ±560	14.1% ±1.8	19.2% ±0.1	26.9% ±<0.1
Born a citizen outside the states	11 to 85	< 0.1% to 0.3%	1.0% ±<0.1	1.7% ±<0.1
Born abroad	301 ±116	1.0% ±0.4	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	161 ±69	0.5% ±0.2	2.8% ±<0.1	7.4% ±<0.1
Not citizens	65 to 215	0.2% to 0.7%	2.5% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Hardin County among the counties of Ohio

72nd of 88 by population, July 2025. Every one is listed on the Ohio page.

Counties of Ohio near Hardin County in population, July 2025
County	July 2025	Change since 2020
Williams County	36,549	−1.4%
Morrow County	36,305	+3.7%
Perry County	35,918	+1.3%
Putnam County	34,380	> −0.1%
Jackson County	32,817	+0.4%
Hardin County	30,072	−2.1%
Gallia County	29,072	−0.5%
Van Wert County	29,013	+0.3%
Fayette County	28,552	−1.4%
Adams County	27,865	+1.5%
Henry County	27,598	−0.2%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026