Chester County is a county located in southeastern Pennsylvania, United States. It is bordered by Lancaster County to the west, Berks County to the northwest, Montgomery County to the northeast, and Delaware County to the east. The county seat is West Chester, and the estimated population of the county was over 524,989 as of 2020.
Chester County is known for its rolling hills, picturesque countryside, and historic charm. It has a rich history dating back to colonial times, and many of its towns and villages have preserved their historic architecture and cultural heritage. The county is also home to many parks and recreational areas, including Marsh Creek State Park, Valley Forge National Historical Park, and French Creek State Park.
According to the U.S. Energy Information Administration's State Heating Oil and Propane Program (SHOPP) report for Pennsylvania in 2020, approximately 3% of households in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area, which includes Chester County, used heating oil as their primary heating fuel.