Philadelphia County Flag

Philadelphia County

State:
Pennsylvania
County Seat:
Philadelphia

Philadelphia County's 2026 population is estimated at 1,595,050, reflecting a 0.67% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Philadelphia County is the largest county in Pennsylvania. The 2010 population was 1,528,303 and has grown 4.37% since 2010.

1,595,050
Total Population
11,903
Population Density (mi²)
1
Population Rank (State)
10.6K 0.67%
Annual Population Growth

Philadelphia County Population

Demographics

Economics and Income Statistics