Congressional district boundaries for Pennsylvania from 12/22/11 to 02/19/18 (shapefile) ##Redistricting Data Hub (RDH) Retrieval Date 01/20/21 ##Sources Special thanks to Professor Justin Levitt, founder of All About Redistricting (https://redistricting.lls.edu/) who compiled current and previous legislative boundaries, currently hosted on the AAR website, and shared his sources with the RDH to support our data collection efforts. The Congressional district boundaries for 12/22/11 to 02/19/18 were retrieved from http://aws.redistricting.state.pa.us/Redistricting/Resources/GISData/Districts/Congressional/2011/SHAPE/PA-Congressional-Districts-2011.zip ##Processing The Congressional district boundaries for Pennsylvania were retrieved with a python script. The shapefiles were unzipped and uploaded to python and renamed with RDH conventions and zipped into a folder with supporting geospatial files and this README. Processing was primarily completed using the pandas and geopandas libraries. ##Additional Notes For more information on the data see the AAR page at: https://redistricting.lls.edu/state/pennsylvania Please direct questions related to processing this dataset to info@redistrictingdatahub.org