Union County, Ohio Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 37th-largest in Ohio

The population of Union County, Ohio is 65,293 as of the 2023 American Community Survey, making it the 37th-largest county in Ohio. The median household income is $109,506, the median home value is $306,600, and the median age is 38.1.

The population of Union County has grown 36.7% since 2010 (52,462 → 71,721), a +2.26% annualized rate.

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

65,293

Population

+2.26%

Annual growth

151

People / sq mi

$109,506

Median Income

$306,600

Median Home Value

Union County covers 432 sq mi of land at 151.2 people per square mile.

About Union County, OH

Union County is a county in Ohio with a population of 65,293. It ranks #37 among counties in Ohio by population. The median age is 38.1, in line with the national median. The population is 48.4% male and 51.6% female.

The median household income in Union County is $109,506, above the US median of $74,580. 3.9% of residents live below the federal poverty level. Home values sit at a median of $306,600, with monthly rent averaging $1,188. The homeownership rate of 79.4% is higher than the national rate of 64.8%.

Educational attainment in Union County reflects 39.1% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 19.9% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 26.5 minutes each way.

Union County Population History (2010-2024)

The county of Union County had a population of 52,462 in 2010 and 71,721 in 2024, a 36.7% growth over 14 years. The peak was 71,721 in 2024. Average annual growth rate: 2.27%.

71,721

Population (2024)

52,462

Population (2010)

71,721

Peak (2024)

2.27%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	52,462	-	-	estimate
2011	53,101	+639	+1.22%	estimate
2012	52,798	-303	-0.57%	estimate
2013	53,440	+642	+1.22%	estimate
2014	53,782	+342	+0.64%	estimate
2015	54,394	+612	+1.14%	estimate
2016	55,601	+1,207	+2.22%	estimate
2017	56,842	+1,241	+2.23%	estimate
2018	57,836	+994	+1.75%	estimate
2019	59,054	+1,218	+2.11%	estimate
2020	63,090	+4,036	+6.83%	estimate
2021	65,119	+2,029	+3.22%	estimate
2022	66,927	+1,808	+2.78%	estimate
2023	69,765	+2,838	+4.24%	estimate
2024	71,721	+1,956	+2.80%	estimate

Race & Ethnicity

White	86.6%
Black or African American	2.4%
Asian	0.0%
Hispanic or Latino (any race)	1.9%
Two or More Races	0.0%

Age & Sex

38.1

Median Age

51.6%

Female

48.4%

Male

13.0%

Age 65+

Age Distribution

Under 5

6.2%

5–9

6.8%

10–14

6.9%

15–19

6.8%

20–24

5.3%

25–34

13.1%

35–44

15.7%

45–54

14.0%

55–59

6.8%

60–64

5.5%

65–74

8.1%

75–84

3.6%

85+

1.3%

Children (under 15): 19.9% · Seniors (65+): 13.0%

Income & Poverty

Median household income	$109,506+$39,826 vs state
Mean household income	$134,832
Per-capita income	$49,946
Poverty rate	3.9%-5.3% vs state
Unemployment rate	1.6%
Employment-to-population	66.8%

Top Industries by Employment

Professional & business services

21.4%

Manufacturing

17.3%

Finance & real estate

12.5%

Information

8.1%

Education & health care

5.5%

Public administration

5.3%

Construction

5.2%

Retail trade

5.0%

The largest employment sector in Union County is professional & business services, accounting for 21.4% of workers.

How residents commute

0.6%

Drive alone

0.5%

Carpool

71.8%

Public transit

19.9%

Work from home

26.5 min

Avg commute

Housing

$306,600+$107,400 vs state

Median home value

$1,188

Median rent

79.4%

Homeownership rate

24,298

Total housing units

96.7%

Occupied

3.3%

Vacant

20.6%

Renter-occupied

Social & access

95.7%

With health insurance

96.6%

With broadband internet

18.3%

Foreign-born

5.8%

Veterans (18+)

10.6%

With a disability

92.2%

Speak language other than English at home

Education

95.2%

High School+

39.1%

Bachelor's+

Largest cities in Ohio

Columbus (906,480)Cleveland (367,523)Cincinnati (309,595)Toledo (268,461)Akron (189,526)Dayton (136,741)Parma (80,131)Canton (70,105)Lorain (65,207)Hamilton (63,124)All Ohio cities →

Other counties in Ohio

Franklin County (1,321,635)Cuyahoga County (1,249,418)Hamilton County (827,878)Summit County (538,087)Montgomery County (535,528)Lucas County (428,748)Butler County (389,910)Stark County (373,764)Lorain County (314,588)Warren County (246,364)All Ohio counties →

Part of Ohio

Ohio demographic profile All Ohio data →

Metro areas in Ohio

Cincinnati (2,255,257)Cleveland (2,171,978)Columbus (2,151,847)Dayton (813,608)Akron (699,508)Toledo (602,977)Youngstown (428,430)Canton (400,495)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Union County, Ohio has a population of 65,293 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 37th-largest county in Ohio. Population density is 151 people per square mile.

The population of Union County has grown 36.7% since 2010 (52,462 → 71,721), a +2.26% annualized rate.

The median household income in Union County, Ohio is $109,506, with mean (average) household income of $134,832 and per-capita income of $49,946. 3.9% of residents live below the federal poverty level.

In Union County, the largest racial and ethnic groups are White (86.6%), Black or African American (2.4%), Hispanic or Latino (1.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Union County, Ohio is 38.1 years. Residents are 51.6% female and 48.4% male.

The median home value in Union County is $306,600 and median monthly rent is $1,188. 79.4% of occupied housing units are owner-occupied. The county has 24,298 total housing units, 3.3% of which are vacant.

The largest employment sector in Union County, Ohio is professional, scientific, and management services, employing 21.4% of workers. The unemployment rate is 1.6%.

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