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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

Adams County is a county in Ohio with a population of 27,510. It ranks #78 among counties in Ohio by population. The median age is 42.3, older than the national median. The population is 49.7% male and 50.3% female.

The median household income in Adams County is $49,521, below the US median of $74,580. 14.8% of residents live below the federal poverty level. Home values sit at a median of $157,500, with monthly rent averaging $700. The homeownership rate of 71.0% is higher than the national rate of 64.8%.

Educational attainment in Adams County reflects 14.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.3% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 35.8 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

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.