Demographics of Darke County, Ohio

Darke County, Ohio had 51,520 people on July 1, 2025, by the Census Bureau’s estimate: −381 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.

Darke County, in four figures

51,520
Population: July 1, 2025, Vintage 2025 estimate.; −0.7%
Change since July 2020: −381 people.; 41.8 ±0.4
Median age: ACS 2020–⁠2024.; $64,486 ±$3,989
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.

Darke County, Ohio's population shrank 0.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Darke 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

Darke County, Ohio's population shrank 0.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Darke 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	51,901	100.0	100.0
2021	51,597	99.4	100.2
2022	51,449	99.1	100.7
2023	51,380	99.0	101.6
2024	51,445	99.1	102.5
2025	51,520	99.3	103.1

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Population of Darke 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	51,901	+14	−16	0	+17
2021	51,597	−304	−140	−1	−188
2022	51,449	−148	−186	+12	+61
2023	51,380	−69	−21	+16	−50
2024	51,445	+65	+8	+21	+45
2025	51,520	+75	+17	+10	+46

Age, 2020–2024

The median age is 41.8 ±0.4: for men 40.4 ±0.6 and for women 43.0 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Darke County by age, ACS 2020–2024
Age	People	Share	Ohio	United States
Under 5	3,124 ±67	6.1% ±0.1	5.7% ±<0.1	5.6% ±<0.1
5 to 17	9,076 ±338	17.6% ±0.7	16.3% ±0.1	16.3% ±<0.1
18 to 24	3,934 ±232	7.6% ±0.4	8.9% ±0.1	9.1% ±<0.1
25 to 44	11,641 ±419	22.6% ±0.8	25.7% ±0.1	26.9% ±<0.1
45 to 64	13,255 ±411	25.7% ±0.8	25.1% ±0.1	24.8% ±<0.1
65 and over	10,564 ±538	20.5% ±1.0	18.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $64,486 ±$3,989, and income per person $34,842 ±$1,372, 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 Darke County by income, ACS 2020–2024
Household income	Households	Share	Ohio	United States
Under $25,000	3,672 ±413	17.2% ±1.9	16.3% ±0.2	14.6% ±<0.1
$25,000 to $49,999	4,723 ±439	22.2% ±2.0	19.1% ±0.2	16.7% ±<0.1
$50,000 to $74,999	3,792 ±407	17.8% ±1.9	16.9% ±0.1	15.5% ±<0.1
$75,000 to $99,999	3,177 ±348	14.9% ±1.6	13.1% ±0.1	12.6% ±<0.1
$100,000 to $149,999	3,299 ±335	15.5% ±1.6	17.1% ±0.1	17.5% ±<0.1
$150,000 to $199,999	1,427 ±190	6.7% ±0.9	8.3% ±0.1	9.6% ±<0.1
$200,000 or more	1,207 ±203	5.7% ±1.0	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 Darke County by age, ACS 2020–2024
Age	Below poverty	Rate	Ohio	United States
All ages	5,619 ±673	11.0% ±1.3	13.3% ±0.2	12.5% ±0.1
Under 18	1,350 ±268	11.2% ±2.2	17.8% ±0.3	16.1% ±0.1
18 to 59	2,500 ±368	10.0% ±1.5	12.7% ±0.2	11.6% ±0.1
60 and over	1,769 ±303	12.7% ±2.1	10.6% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Darke County, ACS 2020–2024
Measure	Darke County	Ohio	United States
Housing units	22,651 ±52	5,292,391 ±464	143,775,355 ±10,234
Occupied	94.0% ±1.2	91.9% ±0.2	89.9% ±0.1
Vacant	6.0% ±1.2	8.1% ±0.2	10.1% ±0.1
Owner occupied	72.4% ±2.1	67.2% ±0.3	65.2% ±0.3
Renter occupied	27.6% ±2.0	32.8% ±0.2	34.8% ±0.1
Median home value	$173,200 ±$4,305	$214,800 ±$742	$332,700 ±$236
Median gross rent	$779 ±$30	$1,034 ±$5	$1,413 ±$2
Median year built	1963 ±2	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 Darke County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Ohio	United States
Hispanic or Latino	966 ±0	1.9% ±<0.1	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	48,816 ±124	94.6% ±0.2	75.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	293 ±118	0.6% ±0.2	12.0% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	281 ±123	0.5% ±0.2	2.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 30	0% to 0.1%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 30	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	17 to 137	< 0.1% to 0.3%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,161 ±191	2.3% ±0.4	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 Darke County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Ohio	United States
Born in the state	41,559 ±570	80.6% ±1.1	74.6% ±0.1	57.3% ±<0.1
Born in another state	9,411 ±554	18.2% ±1.1	19.2% ±0.1	26.9% ±<0.1
Born a citizen outside the states	52 to 178	0.1% to 0.3%	1.0% ±<0.1	1.7% ±<0.1
Born abroad	509 ±104	1.0% ±0.2	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	61 to 299	0.1% to 0.6%	2.8% ±<0.1	7.4% ±<0.1
Not citizens	329 ±102	0.6% ±0.2	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%.

Darke County among the counties of Ohio

49th of 88 by population, July 2025. Every one is listed on the Ohio page.

Counties of Ohio near Darke County in population, July 2025
County	July 2025	Change since 2020
Washington County	58,389	−2.1%
Huron County	58,250	−0.4%
Lawrence County	55,710	−4.2%
Seneca County	54,522	−1.0%
Ashland County	52,523	+0.1%
Darke County	51,520	−0.7%
Shelby County	48,065	−0.2%
Madison County	46,985	+7.1%
Logan County	46,302	+0.4%
Auglaize County	45,909	−1.2%
Holmes County	44,970	+1.7%

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