Useful Links

Representable

A community of interest mapping tool created by a team of Princeton undergraduates with help from PGP.

Runaway Redistricting: How the Rush to Redistricting Can Leave Communities Behind

With the adjusted census timeline, states will receive population data needed for redistricting several months later than in previous census cycles. Common Cause details, in this report, the likely impact of this new schedule; in addition to recommendations for ensuring a transparent and inclusive redistricting process.

Extreme Maps

A 2017 report by the Brennan Center on the district maps produced in the 2011 redistricting cycle.

Dave's Redistricting App

A free-to-use, public software for drawing and analyzing state legislative and congressional district plans.

All About Redistricting

A great resource maintained by Justin Levitt. Go here to find out, for instance, which parties controlled redistricting for various states in various years.

Districtr

A free-to-use, public software created by the Metric Geometry and Gerrymandering Group for drawing state legislative and congressional district plans as well as communities.

The State of Redistricting Litigation

A tracker updated by the Brennan Center.

How Changes to the 2020 Census Timeline Will Impact Redistricting

A comprehensive analysis by the Brennan Center of how possible census delays will affect redistricting in 2020.

PlanScore

Visualize the efficiency gap across time, and upload custom district plans for analysis.