Election results, 2024: Comparison of state delegations to the 118th and 119th Congresses

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Updated December 4, 2024

This page examines the differences between state delegations to the 118th and 119th Congresses, including the percentage of new members, partisan composition, and partisan shifts. Both U.S. Senate and U.S. House members are included in each state's congressional delegation.

In addition to incumbents defeated in elections, appointments to state and executive offices, resignations, and retirements also changed the composition of congressional delegations.

HIGHLIGHTS

Delaware sent the greatest percentage of new members to the 119th Congress. Two of the three (66.7%) members of New Mexico's delegation were new members.

Thirty-three states sent the same members of Congress that represented them at the end of the 118th Congress.

The congressional delegations of four states became more Democratic. The party gained one member each in Alabama, Louisiana, and Oregon. The party also gained three members each in California and New York.

The congressional delegations of eight states became more Republican. The party gained one member in Alaska, Colorado, Michigan, Montana, Ohio, and West Virginia. The party also gained three members each in North Carolina and Pennsylvania.

For more in-depth information on 2024 election results or partisan composition of previous congresses, see the following pages:

Percentage of new members in 119th Congress by state

This chart shows the percentage of new U.S. Senate and U.S. House members in each state's delegation in the 119th Congress compared to the end of the 118th Congress. Independents who caucused with Democrats were counted as Democrats.

Partisan composition of 118th and 119th Congresses by state delegation

This chart compares the partisan composition of each state delegation at the end of the 118th Congress to the beginning of the 119th Congress. Independents who caucused with Democrats were counted as Democrats. At the end of the 118th Congress, Republicans controlled 270 congressional seats to Democrats' 265. At the beginning of the 119th Congress, Republicans held 273 total congressional seats to Democrats' 262.