Philadelphia County, Pennsylvania had a population of 1,526,006 in 2010.
=== 2020 Census ===== Government ==Currently, Philadelphia County has no government structure
 Philadelphia County is the core county in the Philadelphia-Camden-Wilmington Combined Statistical Area (PA-NJ-DE-MD, also known as the Delaware Valley), located along the lower Delaware and Schuylkill Rivers, within the Northeast megalopolis

