Portersville, PA

Portersville is a borough in Butler County, Pennsylvania, United States. The 2020 census counted 231 residents. The area that would become Portersville was originally settled in the early 19th century as part of Muddy Creek Township in Butler County, Pennsylvania. The first recorded village name was Stewartsville, likely named after the first settler, Robert S. Portersville has several events each year in the immediate and surrounding areas. The Portersville Steam Show occurs three times a year. That mix gives Portersville a clear local shape within Pennsylvania, with older layers still visible in current places. The local scoop is a place whose streets, landmarks, and institutions keep its earlier story close to the present. Portersville is surrounded by Muddy Creek Township, though the borough's western border comes within 660 feet of the Lawrence County line. Interstate 79 passes just east of the borough, with access from Exit 96.