South Union is located in Fayette County, Pennsylvania. South Union has a 2025 population of 10,328 . South Union is currently declining at a rate of -0.88% annually and its population has decreased by -4.99% since the most recent census, which recorded a population of 10,871 in 2020.
The average household income in South Union is $102,039 with a poverty rate of 9.22%. The median age in South Union is 44.4 years: 44.4 years for males, and 44.3 years for females. For every 100 females there are 84.4 males.
Data after 2023 is projected based on recent change
The racial composition of South Union includes 92.64% White, and smaller percentages for Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White (92.64%)
Two or more races (3.59%)
Asian (1.83%)
Black or African American (1.54%)
Native Hawaiian or Pacific Islander (0.39%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,906 | 92.64% |
| Two or more races | 384 | 3.59% |
| Asian | 196 | 1.83% |
| Black or African American | 165 | 1.54% |
| Native Hawaiian or Pacific Islander | 42 | 0.39% |
Married
Widowed
Divorced
Separated
Never Married
South Union's average per capita income is $50,488. Household income levels show a median of $76,812. The poverty rate stands at 9.22%.
Name | Median | Mean |
|---|---|---|
| Married Families | $119,154 | - |
| Families | $109,250 | $131,083 |
| Households | $76,812 | $102,039 |
| Non Families | $35,786 | $43,478 |
Average Income
Median Household Income
Poverty Rate