When the 119th Congress takes office on Jan. 3, 2025, there will be 15 new members of the U.S. House of Representatives who defeated incumbents in a primary or general election this year.

Since 2014, 125 U.S. House incumbents—49 Democrats and 72 Republicans—have lost in a primary or general election each year. That’s an average of 21 incumbents per year. The 15 incumbents who lost re-election this year is the second-fewest since 2014. The year with the fewest number of incumbents who lost re-election was 2016 when 12 incumbents lost re-election.

Eleven incumbents—four Democrats and seven Republicans—who lost a general election this year. Since 2014, 85 House incumbents have lost re-election in a general election. That’s an average of 14 incumbents per year.

Democratic incumbents who lost re-election in a general election

Four Democratic incumbents lost re-election in a general election this year. Since 2014, 36 Democratic incumbents have lost re-election in a general election. That’s an average of six incumbents per year. 

Half of all Democratic incumbents who lost re-election in a general election this year—Susan Wild (D) and Matt Cartwright (D)—are part of Pennsylvania’s U.S. House delegation. The other Democratic incumbents who lost re-election are Mary Peltola (D-Alaska) and Yadira Caraveo (D-Colo.).

Republican incumbents who lost re-election in a general election

Seven Republican incumbents lost re-election in a general election this year. Since 2014, 49 Republican incumbents have lost re-election in a general election. That’s an average of eight incumbents per year. 

Six of the seven Republican incumbents who lost re-election in a general election this year were either part of California’s or New York’s U.S. House delegation. The three Republican incumbent members of California’s U.S. House delegation were John Duarte (R), Michelle Steel (R), and Mike Garcia (R). The three Republican incumbent members of New York’s U.S. House delegation were Anthony D’Esposito (R), Brandon Williams (R), and Marcus Molinaro (R). The other Republican incumbent who lost re-election is Lori Chavez-DeRemer (R-Ore.).