Union County's 2026 population is estimated at 36,206, reflecting a -1.1% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Union County is the 21st largest county in Arkansas. The 2010 population was 41,570 and has grown -12.9% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.4 years
Female: 42.8 years
Male: 39.9 years
There are 28,916 adults, (7,288 of whom are seniors) in Union County.
Female: 19,221 (50.7%)
Male: 18,679 (49.3%)
The racial composition of Union County includes 61.57% White, 32.28% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 23,334 | 61.57% |
| Black or African American | 12,235 | 32.28% |
| Two or more races | 1,702 | 4.49% |
| Asian | 325 | 0.86% |
| Other race | 231 | 0.61% |
| Native American | 73 | 0.19% |
Union County 's average per capita income is $41,216. Household income levels show a median of $55,259. The poverty rate stands at 19.55%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $87,284 | - |
| Families | $71,955 | $89,733 |
| Households | $55,259 | $74,348 |
| Non Families | $33,493 | $49,568 |
Average Income
Median Household Income
Poverty Rate
