Chester County, county in Pennsylvania, United States. As of 2020 county had an estimated population of 526,759 inhabitants. The county was created 340 years ago in 1682. Its county seat is "West Chester".
There are 1 city/town in Chester County, PA. The largest city of Chester County is Downingtown with a population of 8,419.
Cities, Towns, Neighborhoods & Other Populated Places in Chester County.
|Downingtown||Borough in Chester County, Pennsylvania||Chester||8,419|