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 and multiracial populations.

Population by Race

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%

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