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 2026 population of 8,094. Castle Shannon is currently declining at a rate of -0.44% annually and its population has decreased by -2.32% since the most recent census, which recorded a population of 8,286 in 2020.

8.1K
Total Population
5,066
Density (mi²)
-36 -0.44%
Growth

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)