Philadelphia County Flag

Philadelphia County

State:
Pennsylvania
County Seat:
Philadelphia

Philadelphia County's estimated 2026 population is 1,575,827 with a growth rate of 0.1% 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 3.11% since that time.

1,575,827
Total Population
11,760
Population Density (mi²)
1
Population Rank (State)
1.5K 0.1%
Annual Population Growth

Philadelphia County Population

Demographics

Economics and Income Statistics