You draw the lines.
Districtr is a free browser-based tool for drawing districts and mapping your community.Help shape our democracy!
Use this tool to amplify your voice
You can draw districts
In the U.S., there's a big redistricting cycle every 10 years after new Census data is released... and lately, redistricting happens constantly, even mid-decade. In most states, elected representatives in the state legislature are responsible for drawing the lines—including the districts for their own re-election. Following the 2020 Census, many states, cities, and counties experimented with collecting more public mapping input than ever before, and the Districtr team was there to help.Now you can try your hand at redistricting! It's easy to make plans of your own and share them widely with Districtr.
You can draw your community
Communities of Interest (known as “COIs”) are areas or neighborhoods with significant shared interests that deserve consideration by representatives. Many states have rules that indicate that COIs should be kept whole by districting plans whenever possible; others just say that they should be “taken into account.” This has been one of the hardest to handle of all the priorities in the redistricting world—if you show up at a meeting to say your community matters, how does that information make its way to the line-drawers?Districtr lets you put your community on the map (literally!) by marking places that matter to make your shared interests visible. If you are interested in learning more about best practices for COI map collection, email us at Districtr@data-democracy.org.For a detailed walkthrough of Districtr, visit our guide page.
Already have saved maps?
Open the Catalog page to view, filter, reopen, and remove maps that are saved in your local browser storage.These locally stored maps can be expunged if browser data is cleared.
Where would you like to start?
Pick a state on the map, or upload a block-assignment file from another tool.
About Districtr
Origin Story
The goal of Districtr is to put the tools of redistricting in the hands of the public, with an emphasis on meeting the needs of community groups, redistricting commissions, and civil rights organizations.Districtr came about from a conversation with Lawyers for Civil Rights (LCR), the Boston arm of the national Lawyers' Committee for Civil Rights Under Law. LCR was describing their work with community members in Lowell, MA, who were frustrated about not having a voice in the city council. In those conversations, a few places kept coming up...Like Clemente Park, a much-loved meeting point for the city's Cambodian and Latino populations, who felt unsafe at night because the city had not provided lighting...And Lowell High School, the city's only public high school, which serves over 3000 students. The city announced plans to move it from its traditional downtown location, but without sufficient outreach to communities around the city about possible new sites.Our idea was to create a mapping tool whose fundamental principle is to ask the community what matters. With maps that build COIs around relevant zones and landmarks, paired with community narratives, we can start to see local interests come to life.Our Values
Accessibility. Participating in the redistricting process should be approachable for everyone. Districtr is engineered for maximum accessibility. It's entirely in-browser with no login and no app downloads needed, it works on tablets as well as computers, and we assign each plan its own web address for easy sharing.Openness and transparency. The entire project began its life as open source, with permissive licenses. (We may have to revisit this in the AI era!) We only collect anonymized usage data like page views, how you found Districtr, and what size screen you are using.Maps not metrics. We don't think that good maps can be measured in one-size-fits-all metrics, so we've built a more lightweight mapping experience that doesn't put scores front and center. Newer evaluation functionality lets you access metrics when you're at a stopping point. You can export maps from Districtr in forms that can be read in the other major redistricting software.All politics is local. We've got 760,000-person congressional districts and 13,000-person city council districts, and every scale in between: county commissions, school zones, library boards—you name it, we map it.Responsiveness to the community. We aim to highlight specific local rules, principles, and priorities whenever possible. We also build event pages for organizers so they can see an overview of maps from the group at a glance.Still have questions?
If you are interested in partnering with us or sponsoring a voting rights project, reach out to us at Districtr@data-democracy.org.Our team aims to respond to requests for new modules within a week.Development Team
Software Devs: Dylan Halpern, Ge FangProject Team: Peter Rock, Moon DuchinPast Contributors: (originating team) Ruth Buck, Max Hully; (past project managers) Liz Kopecky, Chris Donnay; (past dev lead) Nick Doiron; (other contributors) Anna Bailliekova, Mario Giampieri, Raphael Laude, Jamie Atlas, Eion Blanchard, Jack Deschler, Chris Gernon, Peter Horvath, Muniba Khan, Zhenghong Lieu, JN Matthews, Anthony Pizzimenti, Heather Rosenfeld, Anna Schall, and many more.Ready to start drawing districts?
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