Union County's estimated 2026 population is 26,804 with a growth rate of 0.02% in the past year according to the most recent United States census data. Union County is the 35th largest county in South Carolina. The 2010 population was 28,914 and has seen a growth of -7.3% since that time.
Data after 2023 is projected based on recent change
Overall: 44.5 years
Female: 45.8 years
Male: 42.7 years
There are 21,295 adults, (5,810 of whom are seniors) in Union County.
Female: 14,201 (52.8%)
Male: 12,684 (47.2%)
The racial composition of Union County includes 64.52% White, 27.8% Black or African American, and smaller percentages for other race, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 17,346 | 64.52% |
| Black or African American | 7,475 | 27.8% |
| Two or more races | 1,610 | 5.99% |
| Other race | 325 | 1.21% |
| Native American | 81 | 0.3% |
| Asian | 43 | 0.16% |
| Native Hawaiian or Pacific Islander | 5 | 0.02% |
Union County's average per capita income is $37,336. Household income levels show a median of $41,621. The poverty rate stands at 22.62%.
Name | Median | Mean |
|---|---|---|
| Married Families | $76,356 | $88,168 |
| Families | $59,824 | $73,248 |
| Households | $41,621 | $60,230 |
| Non Families | $23,866 | $36,334 |
Average Income
Median Household Income
Poverty Rate