Castle Shannon Flag

Castle Shannon

County Seat:
No
Area (mi²):
1.598
State:
Pennsylvania

Castle Shannon is a borough located in Allegheny County, Pennsylvania. Castle Shannon has a 2025 population of 7,975. Castle Shannon is currently declining at a rate of -0.78% annually and its population has decreased by -3.8% since the most recent census, which recorded a population of 8,290 in 2020.

The average household income in Castle Shannon is $81,574 with a poverty rate of 8.45%.The median age in Castle Shannon is 41.9 years: 40.3 years for males, and 42.2 years for females.

8K
Total Population
4,991
Density (mi²)
-63 -0.78%
Growth

Castle Shannon Population

Demographics

Economics and Income Statistics

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)