South Fayette township

County:: Allegheny County
County Seat:: No
Area (mi²):: 20.301
State:: Pennsylvania

South Fayette township is located in Allegheny County, Pennsylvania. South Fayette township has a 2025 population of 18,446. South Fayette township is currently growing at a rate of 0.01% annually and its population has increased by 0.51% since the most recent census, which recorded a population of 18,352 in 2020.

The average household income in South Fayette township is $154,312 with a poverty rate of 3.26%.The median age in South Fayette township is 41.4 years: 40.4 years for males, and 43.2 years for females.

Demographics

The racial composition of South Fayette township includes 81.31% White, 12.07% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	14,903	81.31%
Asian	2,213	12.07%
Two or more races	637	3.48%
Black or African American	543	2.96%
Other race	29	0.16%
Native American	3	0.02%

South Fayette township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Fayette township's average per capita income is $72,332. Household income levels show a median of $121,737. The poverty rate stands at 3.26%.

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
Married Families	$162,050	-
Families	$150,417	$176,476
Households	$121,737	$154,312
Non Families	$60,400	$93,355

$72,332

Average Income

$121,737

Median Household Income

3.26%

Poverty Rate