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Behind The Lines

Examining some of the most consequential redistricting lawsuits of the cycle

Esri products such as ArcGIS StoryMaps have known compatibility issues with iOS devices. For an optimal user experience, please view this page on a non-iOS tablet, phone or desktop computer...

2021 Party Control Map - Expectations vs. Reality

Expectations At the beginning of the 2020 redistricting cycle, we published a blog post detailing who controlled the redistricting process in each state. But the realities of the cycle had oth...

2020 Census Count Errors & Congressional Apportionment

Census Report On May 19, 2022, the U.S. Census Bureau released the 2020 Census estimated overcount and undercount rates by State derived from the 2020 Post-Enumeration Survey (PES) . The PES ...

Modern Congressional Reapportionment (1960 – 2020)

Reapportionment changes from 1960-2020 Over the past seven reapportionments, 66 seats shifted from the Northeast and Midwest to the South and West. The Losers Northeast The Northeast regi...

Maps  |  National

Party Control Maps (1960-2020)

Post 2020 Election - Congressional Post 2020 Election - Legislative 2011 Redistricting Control 2001 Red...

Maps  |  National

2020-2022 Redistricting Deadlines

Redistricting Deadlines - Congressional Redistricting Deadlines - Legislative

2020-2022 Redistricting Deadlines

Below are the congressional and legislative redistricting deadlines for each state. Congressional Redistricting Deadlines 2021 Deadline These six states face a 2021 redistricti...

2020-2022 Legislative Deadlines

Legislative redistricting deadlines affected by the 2020 Census data delay.

On February 12, 2021, the U.S. Census Bureau announced that the PL-94-171 2020 Census data that is necessary for congressional and legislative redistricting will not be delivered to the states un...

Maps  |  National

Apportionment Maps (1960-2020)

2020 Congressional Apportionment 2020 Bubble Seats Apportionment Changes: 2000 - 2020 2010 Congressional Apportionment ...

2020-2022 Congressional Deadlines

Congressional redistricting deadlines affected by the 2020 Census data delay.

On February 12, 2021, the U.S. Census Bureau announced that the PL-94-171 2020 Census data that is necessary for congressional and legislative redistricting will not be delivered to the states un...

2021 Redistricting Control

Redistricting control as of April 26, 2021.

Congressional Redistricting Republican Control (20 States - 187 Seats): Alabama, Arkansas, Florida, Georgia, Indiana, Iowa, Kansas**, Kentucky**, Mississippi, Missouri, Nebraska...

2020-2022 Commission Deadlines

Redistricting commission deadlines affected by the 2020 Census data delay.

On February 12, 2021, the U.S. Census Bureau announced that the PL-94-171 2020 Census data that is necessary for congressional and legislative redistricting will not be delivered to the states un...


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