Demographics of Guernsey County, Ohio

Guernsey County, Ohio had 38,379 people on July 1, 2025, by the Census Bureau’s estimate: −47 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.

Guernsey County, in four figures

38,379
Population: July 1, 2025, Vintage 2025 estimate.; −0.1%
Change since July 2020: −47 people.; 42.9 ±0.6
Median age: ACS 2020–⁠2024.; $58,478 ±$3,866
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.

Guernsey County, Ohio's population shrank 0.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Guernsey 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

Guernsey County, Ohio's population shrank 0.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Guernsey 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	38,426	100.0	100.0
2021	38,298	99.7	100.2
2022	38,056	99.0	100.7
2023	38,132	99.2	101.6
2024	38,329	99.7	102.5
2025	38,379	99.9	103.1

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Population of Guernsey 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	38,426	−13	−20	0	−6
2021	38,298	−128	−162	+4	−6
2022	38,056	−242	−236	+3	+17
2023	38,132	+76	−120	+8	+193
2024	38,329	+197	−82	+16	+267
2025	38,379	+50	−88	+9	+130

Age, 2020–2024

The median age is 42.9 ±0.6: for men 41.5 ±1.1 and for women 43.7 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Guernsey County by age, ACS 2020–2024
Age	People	Share	Ohio	United States
Under 5	2,220 ±150	5.8% ±0.4	5.7% ±<0.1	5.6% ±<0.1
5 to 17	6,235 ±364	16.3% ±1.0	16.3% ±0.1	16.3% ±<0.1
18 to 24	2,809 ±271	7.3% ±0.7	8.9% ±0.1	9.1% ±<0.1
25 to 44	9,135 ±427	23.9% ±1.1	25.7% ±0.1	26.9% ±<0.1
45 to 64	10,160 ±395	26.6% ±1.0	25.1% ±0.1	24.8% ±<0.1
65 and over	7,664 ±466	20.1% ±1.2	18.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $58,478 ±$3,866, and income per person $32,627 ±$2,386, 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 Guernsey County by income, ACS 2020–2024
Household income	Households	Share	Ohio	United States
Under $25,000	3,268 ±410	20.0% ±2.5	16.3% ±0.2	14.6% ±<0.1
$25,000 to $49,999	3,844 ±464	23.6% ±2.8	19.1% ±0.2	16.7% ±<0.1
$50,000 to $74,999	2,771 ±371	17.0% ±2.2	16.9% ±0.1	15.5% ±<0.1
$75,000 to $99,999	2,690 ±371	16.5% ±2.3	13.1% ±0.1	12.6% ±<0.1
$100,000 to $149,999	2,358 ±337	14.5% ±2.0	17.1% ±0.1	17.5% ±<0.1
$150,000 to $199,999	768 ±167	4.7% ±1.0	8.3% ±0.1	9.6% ±<0.1
$200,000 or more	619 ±172	3.8% ±1.1	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 Guernsey County by age, ACS 2020–2024
Age	Below poverty	Rate	Ohio	United States
All ages	5,780 ±886	15.3% ±2.3	13.3% ±0.2	12.5% ±0.1
Under 18	1,783 ±399	21.5% ±4.5	17.8% ±0.3	16.1% ±0.1
18 to 59	2,747 ±455	14.2% ±2.3	12.7% ±0.2	11.6% ±0.1
60 and over	1,250 ±242	12.4% ±2.3	10.6% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Guernsey County, ACS 2020–2024
Measure	Guernsey County	Ohio	United States
Housing units	19,037 ±47	5,292,391 ±464	143,775,355 ±10,234
Occupied	85.7% ±1.6	91.9% ±0.2	89.9% ±0.1
Vacant	14.3% ±1.6	8.1% ±0.2	10.1% ±0.1
Owner occupied	72.1% ±2.3	67.2% ±0.3	65.2% ±0.3
Renter occupied	27.9% ±2.4	32.8% ±0.2	34.8% ±0.1
Median home value	$157,700 ±$7,245	$214,800 ±$742	$332,700 ±$236
Median gross rent	$864 ±$80	$1,034 ±$5	$1,413 ±$2
Median year built	1972 ±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 Guernsey County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Ohio	United States
Hispanic or Latino	519 ±0	1.4% ±<0.1	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	35,670 ±132	93.3% ±0.3	75.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	721 ±167	1.9% ±0.4	12.0% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	132 ±50	0.3% ±0.1	2.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	2 to 16	< 0.1%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 27	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	39 to 219	0.1% to 0.6%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,043 ±188	2.7% ±0.5	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 Guernsey County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Ohio	United States
Born in the state	32,058 ±619	83.9% ±1.6	74.6% ±0.1	57.3% ±<0.1
Born in another state	5,740 ±605	15.0% ±1.6	19.2% ±0.1	26.9% ±<0.1
Born a citizen outside the states	43 to 151	0.1% to 0.4%	1.0% ±<0.1	1.7% ±<0.1
Born abroad	328 ±102	0.9% ±0.3	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	49 to 257	0.1% to 0.7%	2.8% ±<0.1	7.4% ±<0.1
Not citizens	65 to 285	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%.

Guernsey County among the counties of Ohio

64th of 88 by population, July 2025. Every one is listed on the Ohio page.

Counties of Ohio near Guernsey County in population, July 2025
County	July 2025	Change since 2020
Crawford County	41,896	−0.3%
Fulton County	41,853	−1.9%
Preble County	40,664	−0.8%
Ottawa County	39,481	−2.0%
Champaign County	38,820	+0.2%
Guernsey County	38,379	−0.1%
Defiance County	38,292	+0.1%
Coshocton County	37,188	+1.6%
Williams County	36,549	−1.4%
Morrow County	36,305	+3.7%
Perry County	35,918	+1.3%

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