Union County, Arkansas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 19th-largest in Arkansas
The population of Union County, Arkansas is 38,368 as of the 2023 American Community Survey, making it the 19th-largest county in Arkansas. The median household income is $50,221, the median home value is $114,700, and the median age is 41.5.
The population of Union County has declined 11.0% since 2010 (41,570 → 37,008), a -0.83% annualized rate.
38,368
Population
-0.83%
Annual growth
37
People / sq mi
$50,221
Median Income
$114,700
Median Home Value
Union County covers 1,039 sq mi of land at 36.9 people per square mile.
About Union County, AR
Union County is a county in Arkansas with a population of 38,368. It ranks #19 among counties in Arkansas by population. The median age is 41.5, older than the national median. The population is 48.8% male and 51.2% female.
The median household income in Union County is $50,221, below the US median of $74,580. 15.6% of residents live below the federal poverty level. Home values sit at a median of $114,700, with monthly rent averaging $825. The homeownership rate of 72.9% is higher than the national rate of 64.8%.
Educational attainment in Union County reflects 18.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.2 minutes each way.
Union County Population History (2010-2024)
The county of Union County had a population of 41,570 in 2010 and 37,008 in 2024, a -11.0% growth over 14 years. The peak was 41,570 in 2010. Average annual growth rate: -0.83%.
37,008
Population (2024)
41,570
Population (2010)
41,570
Peak (2010)
-0.83%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 41,570 |
| 2011 | 41,404 |
| 2012 | 40,868 |
| 2013 | 40,619 |
| 2014 | 40,156 |
| 2015 | 40,112 |
| 2016 | 39,920 |
| 2017 | 39,499 |
| 2018 | 39,130 |
| 2019 | 38,677 |
| 2020 | 38,940 |
| 2021 | 38,285 |
| 2022 | 37,858 |
| 2023 | 37,409 |
| 2024 | 37,008 |
Race & Ethnicity
| White | 62.0% |
| Black or African American | 32.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Age & Sex
41.5
Median Age
51.2%
Female
48.8%
Male
19.0%
Age 65+
Age Distribution
Children (under 15): 19.9% · Seniors (65+): 19.0%
Income & Poverty
| Median household income | $50,221$-8,552 vs state |
| Mean household income | $74,494 |
| Per-capita income | $30,968 |
| Poverty rate | 15.6%+4.1% vs state |
| Unemployment rate | 2.4% |
| Employment-to-population | 53.3% |
Top Industries by Employment
The largest employment sector in Union County is professional & business services, accounting for 23.9% of workers.
How residents commute
0.1%
Drive alone
1.6%
Carpool
85.0%
Public transit
6.1%
Work from home
19.2 min
Avg commute
Housing
$114,700$-60,600 vs state
Median home value
$825
Median rent
72.9%
Homeownership rate
18,663
Total housing units
81.0%
Occupied
19.0%
Vacant
27.1%
Renter-occupied
Social & access
94.2%
With health insurance
89.3%
With broadband internet
25.8%
Foreign-born
7.6%
Veterans (18+)
16.4%
With a disability
95.8%
Speak language other than English at home
Education
88.0%
High School+
18.9%
Bachelor's+
Largest cities in Arkansas
Other counties in Arkansas
Part of Arkansas
Metro areas in Arkansas
County rankings
Frequently Asked Questions
Union County, Arkansas has a population of 38,368 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 19th-largest county in Arkansas. Population density is 37 people per square mile.
The population of Union County has declined 11.0% since 2010 (41,570 → 37,008), a -0.83% annualized rate.
The median household income in Union County, Arkansas is $50,221, with mean (average) household income of $74,494 and per-capita income of $30,968. 15.6% of residents live below the federal poverty level.
In Union County, the largest racial and ethnic groups are White (62.0%), Black or African American (32.4%), Hispanic or Latino (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Union County, Arkansas is 41.5 years. Residents are 51.2% female and 48.8% male.
The median home value in Union County is $114,700 and median monthly rent is $825. 72.9% of occupied housing units are owner-occupied. The county has 18,663 total housing units, 19.0% of which are vacant.
The largest employment sector in Union County, Arkansas is professional, scientific, and management services, employing 23.9% of workers. The unemployment rate is 2.4%.
Little Rock is among the largest cities associated with Union County, Arkansas, with a population of 202,739.
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Full rankings of Arkansas counties
Statewide data for Arkansas
Population, race, income, age, and trends across Arkansas
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.