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Prof. Justin Levitt's Doug Spencer's Guide to Drawing the Electoral Lines

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Actions to Watch

The U.S. Supreme Court will issue an order re issues for reargument in Callais, a case about race, partisanship, and the VRA

Texas

Litigation over congressional and state districts went to trial, as Texas considers a mid-decade redraw

Ohio

Ohio will have to redraw congressional districts before 2026, because prior partisan maps were valid for only 2 cycles

North Dakota

Plaintiffs have asked for en banc rehearing of an appellate ruling that private plaintiffs can't enforce the VRA

South Carolina

The state supreme court heard argument on June 24 in a partisan gerrymandering challenge to the congressional districts: an opinion is pending

Florida

Trial proceeds on a claim that a state Senate district is unjustifiably based on race

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

Legal Cases

Follow all of the litigation over federal and state legislative redistricting.

National Overview

Compare the redistricting process across states and over time.

Maps for Download

Download maps for offline use and create comparisons in other applications.

The Latest Updates

Jun 27, 2025

The U.S. Supreme Court set the Callais case, about Louisiana congressional districts, for reargument in the coming Term.

Louisiana

Jun 25, 2025

The Wisconsin Supreme Court rejected a request from state Democrats to reconsider the state's congressional districts before the 2026 midterms.

Wisconsin

May 8, 2025

A three-judge panel held that Alabama's 2023 remedial congressional plan intentionally discriminates against Black voters, opening the door for the state to be "bailed in" under federal preclearance.

Alabama

Nov 4, 2024

The U.S. Supreme Court announced that it will review two cases related to Louisiana's congressional districts. The first case found that the districts violated the Voting Rights review in its next term for oral argument oral argument The League of Women Voters challenged the state's 2022 congressional districts, alleging they are a partisan gerrymander in violation of the state constitution.

Louisiana

Jul 29, 2024

The League of Women Voters challenged the state's 2022 congressional districts, alleging they are a partisan gerrymander in violation of the state constitution.

South Carolina

Jul 23, 2024

Secretary of State Frank LaRose announced the certification of a citizen-initiated ballot measure to amend the state's constitution and create an independent citizen-led redistricting commission.

Ohio