How America Moves

Build Your Own House Map

Color all 435 congressional districts and see which party reaches 218. Uses the 119th Congress (2024) district boundaries.

Build a map for
Democratic 0
Dem needs 218, Rep needs 218
218 for a majority
0 Republican
0 seats435 toss-up0 seats
Ratings
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In Cycle mode (the default), click a district to step through the ratings; shift-click or right-click to step back. Or pick a color from the palette to paint that rating directly. Scroll to zoom, drag to pan. Districts use the 119th Congress (2024) boundaries. All 435 seats are up every two years; 218 is a majority.

A hypothetical scenario tool. All 435 House seats are contested every two years; 218 of 435 is a majority. This builder shows only the map and the count you assign; it does not forecast, and it draws on no results or migration data.