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Philadelphia County is one of the three original counties, along with Chester and Bucks counties, founded by William Penn in November 1682. Since 1854, the county has been coextensive with the City of Philadelphia, which is also its county seat.
Philadelphia County is a legal nullity. All county functions were assumed by the city in 1952. The city has been coterminous with the county since 1854.
Dating to 1682, Philadelphia County’s founding coincided with the origin of the city. Although the county faded from view after its consolidation with the city in 1854, it remained important for understanding Philadelphia’s urban development, local government, and long battles for political reform.
6 days ago · Philadelphia, city and port, coextensive with Philadelphia county, southeastern Pennsylvania, and situated at the confluence of the Delaware and Schuylkill rivers. It is the largest city in the state. Learn more about Philadelphia, including its history, in this article.
Jun 3, 2024 · Discover Philadelphia County, PA’s population & how it has changed over time. USAFacts uses Census data to break down the population of Philadelphia County by race, age,and more. View today.
Jun 21, 2024 · Official website of the City of Philadelphia, includes information on municipal services, permits, licenses, and records for citizens and businesses.
Philadelphia County is the most populous county in Pennsylvania and the 24th-most populous county in the nation. As of the 2020 census, the county had a population of 1,603,797. Its county seat is Philadelphia, the nation's sixth-largest city.
