Majority-Minority District

A majority-minority district is drawn so that one or more racial or ethnic minority groups collectively make up a majority of the district’s eligible voters, typically to comply with the Voting Rights Act’s requirement that redistricting not dilute minority voting strength in areas with a sufficiently large, geographically compact minority population and a history of racially polarized voting. Section 2 of the Voting Rights Act, as interpreted in Thornburg v. Gingles (1986), established the basic legal test for when such districts are required to prevent minority vote dilution.

The practice has also run into its own constitutional limits: in Shaw v. Reno (1993), the Supreme Court held that districts drawn with race as the predominant factor, without adequate justification, can themselves violate the Equal Protection Clause, even when the stated purpose is to help minority voters rather than to harm them — creating an ongoing tension between the Voting Rights Act’s mandate to avoid vote dilution and the Equal Protection Clause’s limits on race-predominant districting, which courts have had to balance case by case ever since.

Common misconception: people often assume drawing districts to include a minority-voter majority is either always required by the Voting Rights Act or always constitutionally suspect as racial gerrymandering — treating the two legal frameworks as though they point in the same direction. In reality, the Voting Rights Act can require these districts in specific circumstances while the Equal Protection Clause simultaneously limits how predominantly race can be used in drawing them, and threading that needle correctly has generated some of the most complex, fact-specific redistricting litigation in modern election law.