New Houston Congressional District Map Upheld by Supreme Court

Search our interactive tool to see your updated district ahead of the March primaries.

Published on Feb. 22, 2026

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The U.S. Supreme Court has upheld the redrawn congressional district maps for Houston, significantly reshaping the political landscape in several parts of the city. The new maps, which took effect for the 2026 election cycle, have shifted the boundaries of several key districts, including the 18th, 9th, and 29th Congressional Districts. Early voting is now underway for the March primaries, marking the first election under the new district lines.

Why it matters

The redrawn congressional districts in Houston could have major implications for the balance of power in Congress, as the changes have transformed some previously safe Democratic districts into more competitive races. The new maps have also altered the demographic makeup of several districts, potentially impacting representation for communities of color.

The details

The 18th Congressional District, long anchored in historically Black neighborhoods, now includes large portions of the former 9th District and stretches further southwest and south than before. Nearly two-thirds of likely Democratic primary voters in the new CD18 previously lived in the old 9th District, shifting the geographic and political makeup of the seat. The newly configured 9th Congressional District has moved to the eastern edge of Harris County and expanded into Liberty County, replacing much of its former south and southwest Houston base. The 29th Congressional District was also redrawn, with Latino neighborhoods from the old 29th shifted into neighboring districts and more Black voters added, significantly altering its demographic composition.

  • The U.S. Supreme Court upheld the redrawn congressional district maps for Houston in December 2025.
  • Early voting for the March primaries is underway and runs through February 27, 2026.
  • Election Day is March 3, 2026, with polls open from 7 a.m. to 7 p.m.

The players

U.S. Supreme Court

The highest court in the United States, which upheld the redrawn congressional district maps for Houston in a 6-3 decision.

Lizzie Fletcher

U.S. Representative for the 7th Congressional District in Houston, whose district was adjusted to become more Democratic-leaning.

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What they’re saying

“The redrawn districts significantly reshape the political landscape in several parts of the state, including Houston, Dallas and South Texas.”

— Matt Zdun (Houston Chronicle)

What’s next

Early voting is underway and runs through February 27, 2026. Election Day is March 3, 2026, with polls open from 7 a.m. to 7 p.m. Voters can use the interactive map on the Houston Chronicle website to search for their new congressional district.

The takeaway

The Supreme Court's decision to uphold the redrawn congressional district maps in Houston could have far-reaching implications for the balance of power in Congress, as the changes have transformed some previously safe Democratic districts into more competitive races. The new maps have also altered the demographic makeup of several districts, potentially impacting representation for communities of color.