U.S. Census BureauThe TIGER/Line Shapefiles are an extract of selected geographic and cartographic information from the Census MAF/TIGER database. The Census MAF/TIGER database represents a seamless national file with no overlaps or gaps between parts. However, each TIGER/Line Shapefile is designed to stand alone as an independent data set or the shapefiles can be combined to cover the whole nation.Filehttps://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=3093engPennsylvania Spatial Data Access (PASDA)PublicTIGER/Line Shapefile, 2009, econ state, , Economic Census County and Equivalent Shapefile [Pennsylvania] {2009}DatasetsPennsylvania