Union, South Carolina Demographics & Population 2026
During the 2020–2024 ACS period, Union, South Carolina had a total population of 8,079, the 77th largest city in South Carolina, with a median household income of $31,914, which is 54% lower than the state average. The poverty rate is 28.9%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 54% below the state average, indicating significant economic challenges.
- More than 1 in 4 residents live below the poverty line (28.9%), well above the national average of 12.4%.
- Unemployment rate of 11.3% is notably above the national average.
Union Quick Facts
How Union Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 8,047 | 8,079 | +0.4% |
| Median household income | $34,112 | $31,914 | -6.4% |
| Median home value | $103,400 | $109,400 | +5.8% |
How Union Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 55 | National average: 61
Education
Educational Attainment (Adults 25+)
Union Rankings in South Carolina
Explore South Carolina Rankings
Other Cities in Union County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Monarch Mill | 1,822 | $39,350 | 21.0% | $82,600 |
| Buffalo | 1,329 | $21,614 | 50.5% | $46,400 |
| Jonesville | 1,118 | $40,625 | 19.8% | $91,700 |
| Carlisle | 494 | $61,029 | 4.3% | $66,300 |
| Lockhart | 405 | $39,000 | 12.9% | $37,500 |
Cities Similar to Union
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Bennettsville | 7,751 | $37,115 | $92,100 | 12.9% | 28.4% |
| Clemson University | 7,015 | N/A | N/A | 100.0% | 74.7% |
| Clinton | 7,676 | $44,522 | $173,400 | 31.4% | 27.7% |
| Sans Souci | 7,665 | $45,069 | $226,500 | 28.4% | 15.9% |
| Marion | 6,206 | $30,662 | $137,300 | 19.8% | 26.8% |
Population Overview
Union is a small city located in South Carolina, within Union County. The total population is 8,079. It ranks as the 77th most populous out of 474 Census-designated places in South Carolina.
Age Demographics
The median age in Union is 45.5 years. This is 13% higher than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Union is $31,914. This is 54% lower than the state median of $69,324. It is also 60% lower than the national median of $80,734. The poverty rate stands at 28.9%. This is 105% higher than the state poverty rate of 14.1%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 11.3%. This is 132% higher than the state rate of 4.9%. The median home value is $109,400. Housing costs are 58% lower than the state median of $259,000. The home-value-to-income ratio is 3.4x. 49.8% of occupied housing units are owner-occupied. This homeownership rate is 31% lower than the state average of 71.9%.
Race & Ethnicity
The largest racial or ethnic group in Union is White (non-Hispanic), making up 50.7% of the population. Black or African American residents account for 43.0%. The Black or African American population is significantly higher than the state average (43.0% vs 24.6%). The Asian population (0.1%) is well below the state average of 1.8%.
Education
15.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 51% lower than the state rate of 32.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.8%.
Data Sources & Methodology
All demographic data for Union, South Carolina is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against South Carolina state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 474 Census-designated places in South Carolina. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all South Carolina city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Union, South Carolina?
Union, South Carolina has a population of 8,079 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Union, SC?
The median household income in Union is $31,914, which is 60% lower than the national median of $80,734.
What is the poverty rate in Union, SC?
The poverty rate in Union is 28.9%. This means approximately 2,300 residents live below the federal poverty line.
What is the racial makeup of Union, South Carolina?
Union's population is 50.7% White, 43.0% Black, 4.2% Hispanic/Latino, and 0.1% Asian.
What is the median home value in Union, SC?
The median home value in Union is $109,400. The home-value-to-income ratio is 3.4x.
How educated is Union, South Carolina?
15.8% of adults (25+) in Union hold a bachelor's degree or higher, and 5.8% hold a graduate or professional degree.