Try it yourself: Draw new congressional districts

When the 2020 Census is completed, Arizona is likely to gain a 10th seat in the U.S. House of Representatives.

According to data from the U.S. Census Bureau, Arizona has gained about 886,000 residents since 2010, giving the state an estimated population of nearly 7.3 million. Since the last census, Arizona has gained more people than all but six states: California, Florida, Georgia, North Carolina, Texas and Washington.

Arizona gained more than 120,000 new residents in 2019, according to the Census Bureau. Only Florida and Texas saw more total population growth during that year.

How the state’s residents will be divided into congressional districts will be the decision of the Arizona Independent Redistricting Commission, which will begin its work in 2021. But what would you do if you were able to draw a new map with 10 congressional districts?

Arizona Mirror has developed a tool to let you do just that. The Arizona Mirror Congressional Redistricting Tool gives every Arizonan the ability to divide the state into new districts.


When the blue voting precinct lines appear on the map, click on “Redistricting” in the left sidebar. Then click “Load Existing Districts”.

When the congressional districts show in color, you are ready to begin redistricting. Zoom in a bit and get busy!

For further instruction and useful hints, click on “Open PDF Welcome Guide”. Consider printing the guide for easy reference.

The “Toggle Instructions” button lists the tool’s operational steps. You can open and close those instructions at will.

If you are stuck and really need help, call our helpline at (602) 999-6803.