South Run

County:: Fairfax County
County Seat:: No
Area (mi²):: 2.528
State:: Virginia

South Run is a CDP located in Fairfax County, Virginia. South Run has a 2025 population of 7,078. South Run is currently growing at a rate of 0.65% annually and its population has increased by 4.7% since the most recent census, which recorded a population of 6,760 in 2020.

The average household income in South Run is $273,733 with a poverty rate of 2.17%.The median age in South Run is 41.5 years: 35.6 years for males, and 44.3 years for females.

Demographics

The racial composition of South Run includes 61.39% White, 19.27% Asian, 5.27% Black or African American, and smaller percentages for other race, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	4,122	61.39%
Asian	1,294	19.27%
Two or more races	803	11.96%
Black or African American	354	5.27%
Other race	128	1.91%
Native Hawaiian or Pacific Islander	13	0.19%

South Run Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Run's average per capita income is $123,611. Household income levels show a median of $250,001. The poverty rate stands at 2.17%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Households	$250,001	$273,733
Families	$250,001	$283,302
Married Families	$250,001	-
Non Families	-	$128,250

$123,611

Average Income

$250,001

Median Household Income

2.17%

Poverty Rate