Our interactive maps allow you to compare districts as they have changed over time. You can view individual districts or the state as a whole. You can also download map data in various formats, such as PDF or the source GIS data to load into your favorite GIS software.
TIGER/Line® Shapefiles are spatial extracts from the Census Bureau's MAF/TIGER database, containing features such as roads, railroads, rivers, as well as legal and statistical geographic areas.
TIGER/Line® Shapefiles are designed for use with geographic information system (GIS) software. The TIGER/Line Shapefiles® do not include demographic data, but they contain geographic entity codes that can be linked to the Census Bureau's demographic data.
The 2010 TIGER/Line® Shapefiles for Pennsylvania can be downloaded from the U.S. Census Bureau's website at this location.
The 2010 Census Redistricting Data [P.L. 94-171] Summary Files contain the redistricting data tabulated from the 2010 Census.
The 2010 Census Redistricting Data (Public Law (P.L.) 94-171) Summary File for Pennsylvania can be downloaded from the U.S. Census Bureau's website at this location.
The 2011 Voting District Boundary Shapefiles contain the most current voting district boundaries.
Download 2011 Voting District Boundary Shapefiles (updated as of August 22, 2011)
The 2011 adjusted U.S. Census population data corrects issues in the raw 2010 data received from the Census Bureau, such as voting district code and name discrepancies, municipality name discrepancies, precinct changes which may have been made after the U.S. Census’ Phase 2 program, and split block issues. This data has been certified by the Legislative Reapportionment Commission as being in useable form for redistricting, and it is the official data used by the Commission to redraw the boundaries of state legislative districts. This official data is also used for congressional redistricting.Download the 2011 Adjusted U.S. Census Population Data
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Additional redistricting information, including shapefiles, KML files, PDF maps and more can be found under the Maps tab of this website.