Upper St. Clair township Flag

Upper St. Clair township

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 2026 population of 20,525. Upper St. Clair township is currently declining at a rate of -0.23% annually and its population has decreased by -2.92% since the most recent census, which recorded a population of 21,143 in 2020.

The median household income in Upper St. Clair township is $163,409 with a poverty rate of 2.52%. The median age in Upper St. Clair township is 43.7 years: 42.8 years for males, and 44.7 years for females. For every 100 females there are 98.8 males.

20.5K
Total Population
2,091
Density (mi²)
-48 -0.23%
Growth

Upper St. Clair township Population

Upper St. Clair township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202620,525-48-0.23%
202520,573-48-0.23%
202420,621-48-0.23%
202320,669-144-0.69%
202220,813-181-0.86%
202120,994-149-0.7%
202021,143-12-0.06%
201919,957-4-0.02%
201819,961100.05%
201719,951-89-0.44%
201620,0401800.91%
201519,8602391.22%
201419,621-17-0.09%
201319,638410.21%
201219,597180.09%
201119,5793501.82%
201019,54580.04%

Median Age

Overall: 43.7 years
Female: 44.7 years
Male: 42.8 years

Upper St. Clair township Adults

There are 15,576 adults, (4,118 of whom are seniors) in Upper St. Clair township.

Sex Ratio

Female: 10,494 (50.3%)
Male: 10,369 (49.7%)

Demographics

The racial composition of Upper St. Clair township includes 85.68% White, 8.12% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White17,87685.68%
Asian1,6958.12%
Two or more races9114.37%
Black or African American2641.27%
Other race1120.54%
Native American50.02%
Race
Population ↓
Percentage (of total)
Two or more races2911.39%
Other race570.27%
White130.06%
Race
Population ↓
Percentage (of total)
White17,86385.62%
Asian1,6958.12%
Two or more races6202.97%
Black or African American2641.27%
Other race550.26%
Native American50.02%

Upper St. Clair township Marital Status

Economics and Income Statistics

Upper St. Clair township 's average per capita income is $96,082. Household income levels show a median of $163,409. The poverty rate stands at 2.52%.

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$205,345-
Families$191,250$227,505
Households$163,409$202,167
Non Families$61,741$84,365

$96,082

Average Income

$163,409

Median Household Income

2.52%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)