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Population Review

Adams County, Ohio Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 78th-largest in Ohio

The population of Adams County, Ohio is 27,510 as of the 2023 American Community Survey, making it the 78th-largest county in Ohio. The median household income is $49,521, the median home value is $157,500, and the median age is 42.3.

The population of Adams County has declined 3.0% since 2010 (28,530 → 27,671), a -0.22% annualized rate.

Adams County within Ohio · Source: US Census TIGER/Line via us-atlas

27,510

Population

-0.22%

Annual growth

47

People / sq mi

$49,521

Median Income

$157,500

Median Home Value

Adams County covers 584 sq mi of land at 47.1 people per square mile.

About Adams County, OH

Educational attainment is the headline number in Adams County: 14.3% of adults 25 and older have a four-year degree. Adams County is a county in Ohio with a population of 27,510.

Earnings trail the nation, with the median household making $49,521, below the US median of $78,538. Poverty sits at 14.8%, above the national 12.4%. Homes carry a median value of $157,500, with typical rent around $700.

Degree attainment is on the lower side for US counties: 14.3% of adults hold a bachelor’s degree, below the national 35.0%. Remote work is on the lower side here, at 5.3%, below the national 14.0%, and the average commute runs about 36 minutes each way.

Adams County Population History (2010-2024)

The county of Adams County had a population of 28,530 in 2010 and 27,671 in 2024, a -3.0% growth over 14 years. The peak was 28,530 in 2010. Average annual growth rate: -0.22%.

2010 · 29K20102024
Adams County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

27,671

Population (2024)

28,530

Population (2010)

28,530

Peak (2010)

-0.22%

Avg Annual Growth

YearPopulation
201028,530
201128,454
201228,288
201328,085
201428,060
201527,919
201627,817
201727,747
201827,685
201927,640
202027,451
202127,589
202227,449
202327,542
202427,671

Race & Ethnicity

White96.5%
Black or African American0.4%
Asian0.0%
Hispanic or Latino (any race)1.3%
Two or More Races0.0%

Age & Sex

42.3

Median Age

50.3%

Female

49.7%

Male

18.5%

Age 65+

Age Distribution

Under 5
5.9%
5–9
6.6%
10–14
6.7%
15–19
7.2%
20–24
5.2%
25–34
11.2%
35–44
11.2%
45–54
13.2%
55–59
7.3%
60–64
6.9%
65–74
11.5%
75–84
5.9%
85+
1.1%

Children (under 15): 19.2% · Seniors (65+): 18.5%

Income & Poverty

Median household income$49,521$-20,159 vs state
Mean household income$65,434
Per-capita income$25,484
Poverty rate14.8%+5.6% vs state
Unemployment rate3.3%
Employment-to-population47.7%

Top Industries by Employment

Professional & business services
28.6%
Manufacturing
13.9%
Construction
10.4%
Retail trade
8.8%
Public administration
5.1%
Education & health care
5.0%
Finance & real estate
4.8%
Arts, entertainment & food
4.7%

The largest employment sector in Adams County is professional & business services, accounting for 28.6% of workers.

How residents commute

0.7%

Drive alone

1.5%

Carpool

84.0%

Public transit

5.3%

Work from home

35.8 min

Avg commute

Housing

$157,500$-41,700 vs state

Median home value

$700

Median rent

71.0%

Homeownership rate

12,737

Total housing units

80.3%

Occupied

19.7%

Vacant

29.0%

Renter-occupied

Social & access

92.2%

With health insurance

90.1%

With broadband internet

19.0%

Foreign-born

8.9%

Veterans (18+)

22.2%

With a disability

98.8%

Speak language other than English at home

Education

85.2%

High School+

14.3%

Bachelor's+

Largest cities in Ohio

Other counties in Ohio

Part of Ohio

Metro areas in Ohio

County rankings

Frequently Asked Questions

Adams County, Ohio has a population of 27,510 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 78th-largest county in Ohio. Population density is 47 people per square mile.

The population of Adams County has declined 3.0% since 2010 (28,530 → 27,671), a -0.22% annualized rate.

The median household income in Adams County, Ohio is $49,521, with mean (average) household income of $65,434 and per-capita income of $25,484. 14.8% of residents live below the federal poverty level.

In Adams County, the largest racial and ethnic groups are White (96.5%), Hispanic or Latino (1.3%), Black or African American (0.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Adams County, Ohio is 42.3 years. Residents are 50.3% female and 49.7% male.

The median home value in Adams County is $157,500 and median monthly rent is $700. 71.0% of occupied housing units are owner-occupied. The county has 12,737 total housing units, 19.7% of which are vacant.

The largest employment sector in Adams County, Ohio is professional, scientific, and management services, employing 28.6% of workers. The unemployment rate is 3.3%.

Columbus is among the largest cities associated with Adams County, Ohio, with a population of 906,480.

Data from the American Community Survey (ACS) 5-Year estimates.

Source: U.S. Census Bureau ACS, 2026.