Union County, Arkansas
Located in Arkansas, Union County has a population of 37,900 residents and a median age of 41.4 years, making it the #1,257 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 19.5%. The median home value is $120,900, and the median household income is $55,259, which is 26% below the national median.
Demographics
Union County has a population of 37,900, making it the #1,257 most populous county in the US. The median age is 41.4 years, which is 6.4% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Union County is $55,259, ranking #2,458 out of 3,222 counties — 26.5% below the national median. The poverty rate is 19.5% and unemployment stands at 5.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Union County is $120,900 (-57.1% vs national). Renters pay a median of $847/mo and the homeownership rate is 72.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Union County, 19.1% of adults age 25+ hold a bachelor's degree or higher, which is 43.4% below the national average, ranking #2,167 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Union County is 70.4 years. 22.4% of adults report poor or fair health and 8.8% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
18.2% of adults in Union County smoke , 41.2% are obese , and 17.0% report excessive drinking. The drug overdose death rate is 24.5 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Union County is 16.2 per 100,000 and the suicide rate is 16.0 per 100,000. Motor vehicle deaths occur at a rate of 24.3 per 100,000.
Homicide Rate Trend
Families & Children
24.0% of children in Union County live in poverty and the infant mortality rate is 9.8 per 1,000 live births. The teen birth rate is 39.3 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Union County is 56.9%. The mean commute time is 21.9 min, which is 20.8% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Union County voted Republican with a margin of 33.5%. The vote was 32.5% Dem / 66% Rep. Compared to 2020, the margin shifted 4.0 toward Republicans .
Vote Share Over Time
About Union County, Arkansas
Union County, Arkansas has a total population of 37,900, making it the 1,257th most populous county in the United States. The median age in Union County is 41.4 years, which is 6.4% above the national median of 38.9 years.
The median household income in Union County is $55,259, which ranks #2,458 of 3,222 counties nationwide. This is 26.5% below the national median of $75,149. The poverty rate is 19.5%, higher than the national rate of 12.6%. The unemployment rate stands at 5.5%.
The median home value in Union County is $120,900, 57.1% below the national median. Renters in Union County pay a median gross rent of $847 per month. The homeownership rate is 72.7%, compared to the national rate of 64.4%.
In Union County, 19.1% of residents aged 25 and older hold a bachelor's degree or higher, 43.4% below the national average of 33.7%. Health insurance coverage stands at 94.4% of the population. The average commute time for workers is 21.9 min.
Union County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 59.4% of the population, followed by Black (non-Hispanic) (32.1%) and Hispanic or Latino (4.7%).
All data for Union County, Arkansas comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.