Philadelphia County Flag

Philadelphia County

State:
Pennsylvania
County Seat:
Philadelphia

Philadelphia County's estimated 2025 population is 1,584,483 with a growth rate of 0.67% in the past year according to the most recent United States census data. Philadelphia County is the largest county in Pennsylvania. The 2010 population was 1,528,303 and has seen a growth of 3.68% since that time.

1,584,483
Total Population
11,825
Population Density (mi²)
1
Population Rank (State)
10.6K 0.67%
Annual Population Growth

Philadelphia County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)