Upper St. Clair township

County:: Allegheny County
County Seat:: No
Area (mi²):: 9.816
State:: Pennsylvania

Upper St. Clair township is located in Allegheny County, Pennsylvania. Upper St. Clair township has a 2025 population of 20,165. Upper St. Clair township is currently declining at a rate of -1.02% annually and its population has decreased by -4.6% since the most recent census, which recorded a population of 21,137 in 2020.

The average household income in Upper St. Clair township is $193,906 with a poverty rate of 2.87%. The median age in Upper St. Clair township is 43.9 years: 43.2 years for males, and 44.7 years for females.

Demographics

The racial composition of Upper St. Clair township includes 86.96% White, 7.28% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	18,169	86.96%
Asian	1,520	7.28%
Two or more races	751	3.59%
Black or African American	323	1.55%
Other race	127	0.61%
Native American	3	0.01%
Native Hawaiian or Pacific Islander	0	0%

Upper St. Clair township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Upper St. Clair township's average per capita income is $91,488. Household income levels show a median of $151,563. The poverty rate stands at 2.87%.

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	$197,045	-
Families	$185,616	$220,955
Households	$151,563	$193,906
Non Families	$61,842	$82,138

$91,488

Average Income

$151,563

Median Household Income

2.87%

Poverty Rate