Fighting gerrymandering, one precinct at a time.

We're building a complete, legislative-quality database of electoral precinct data for the entire nation, and we need your help.

Gathering communities of interest

We're working with citizens and reformers to document communities that matter for redistricting using Representable.


We publish data for public use. To pitch in, see our colleagues at the Redistricting Data Hub.


Data play a critical role in evaluating the fairness of maps. To learn more about fairness standards, see our work at the Princeton Gerrymandering Project.

Archived Data, 2016-2020