Data Summary

Pennsylvania congressional boundaries (Act 34)

2025 - Pennsylvania Department of Transportation

API
REST: https://mapservices.pasda.psu.edu/server/rest/services/pasda/PennDOT/MapServer
WMS: https://mapservices.pasda.psu.edu/server/services/pasda/PennDOT/MapServer/WMSServer?request=GetCapabilities&service=WMS

ADDITIONAL RESOURCES
Web Application: https://docs-pennshare.hub.arcgis.com/
Web Application: https://maps.psiee.psu.edu/paatlas/
Data Archive: Download historic versions of this dataset

ABSTRACT
United States Congressional legislative boundaries within Pennsylvania as set forth in Act 34 of 2002. This layer was digitized by PADOT from maps generated by the Reapportionment Commission for the Bureau of Commissions, Elections and Legislation Pennsylvania Dept. of State. These boundaries were used as the legislative district boundaries for the November 2002 general election and are currently being contested in the judicial system. The current layers are these same district boundary linework attributed with the current legislator's name, party affiliation and home county.