Building Your District Map

This article will walk you through building a state district map from a blank map. You’ve already selected a…

Getting Started in DRA 2020

In 2021 every state will do redistricting. We believe in fairness and transparency in redistricting, and…

District Statistics

When you click on “Statistics” in DRA 2020, you see a table of statistics about the districts in your map, side by side for easy comparison.

Election Composites

When you click on Analyze to analyze a map in Dave’s Redistricting, you see a…

Advanced Measures of Bias & Responsiveness

When you click on the Advanced tab in DRA 2020, two sections show many advanced measures of bias & responsiveness.

Filtering & Sorting Maps

With thousands and thousands of published maps, how do you find just the ones that you’re interested in? You filter…

Tools for Analyzing Maps

DRA 2020 has a rich set of tools for evaluating redistricting maps. Click on the links below, to get more details.

Using Custom Overlays

You can add custom overlays to your maps in DRA 2020. There are two kinds:

• Layers — These are…

Exporting Maps

You can export a map in DRA 2020 to a variety of formats that interoperate with other tools that you & others may use.

Rank-Votes Graph

The first section you see when you choose the “Advanced” command in DRA 2020 shows a rank-vote graph for the map — a rich, visual way to characterize how fair & competitive the map is.