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This site is managed by Colorado Law Professor Doug Spencer while Prof. Levitt is on leave for government service. More info.
Prof. Justin Levitt's Doug Spencer's Guide to Drawing the Electoral Lines

Redistricting Across States

The Constitutional mandate to redraw electoral district lines follows the decennial Census, as we learn where we, the people, live.

Click on the map to the right to to view redistricting information for federal and state legislative districts in each of the 50 states.

Visit the National Overview page to compare control of the redistricting process across states and across time.

View In-Depth National Overview


Plan Dates:



Plan Status:

Party Control:
  Upper House:
  Lower House:

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The Latest Updates

Sep 16, 2021
The Colorado Independent Legislative Redistricting Commission will be holding public hearings on Friday Sept. 17 and Saturday Sept. 18.
Sep 16, 2021
Iowa's nonpartisan Legislative Services Agency published draft plans for the state's new congressional and state legislative districts. The state supreme court has extended the constitutionally-mandated Sept. 15 deadline until Dec. 1. The Governor has called a special session for Oct. 5 to approve final maps.
Sep 15, 2021
The Colorado Independent Congressional Redistricting Commission released the second congressional staff plan.
Sep 14, 2021
The Indiana House Republicans released their proposals for congressional and state House districts. The House will solicit public feedback in the Elections Committee on Sept. 15-16. Final maps must be approved by November 15.
Sep 14, 2021
The Idaho Commission for Reapportionment published two draft plans for new congressional districts. The Commission will solicit feedback at public hearings through the end of September.
Sep 13, 2021
The nonpartisan staff of the Colorado Independent Legislative Redistricting Commission has published a proposed set of maps for state senate and state house districts.

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