SRR Project has teamed up with the Brennan Center for Justice at NYU School of Law to make available the Congressional and state legislative redistricting shapefiles for all 50 states. We share a commitment to the open availability of redistricting data.
Click on a state in the map at right to see the shapefiles for that state below. The posted shapefiles are compatible with ESRI mapping software. They are subject to change, pending litigation outcomes. Each shapefile is accompanied by a description of the source from which it was obtained and the supplemental demographic and electoral data the file contains, if any. For updates on the legal status of approved redistricting maps, and for more details about the origins of each approved map, please visit Justin Levitt’s All About Redistricting site.