Two challengers defeated incumbents in the April 23 primaries for the Pennsylvania House of Representatives. This is the second-lowest number of incumbents defeated since Ballotpedia began gathering data in 2010. 

The defeated incumbents are:

• James Gregory (R) – House District 80
• Kevin Boyle (D) – House District 172

The only other year with fewer incumbent defeats was 2010 when one Republican was defeated. Conversely, a decade-high of 10 incumbent primary defeats occurred in 2022. 

The Democratic primary in House District 10 between Rep. Amen Brown, Sajda Blackwell, and Cass Green, and the Republican primary in House District 117 between Rep. Michael Cabell and Jamie Walsh are too close to call as of May 14.  

In addition to the two incumbents defeated in primary elections, 14 incumbents — five Democrats and nine Republicans — did not seek re-election, meaning at least 16 newcomers will be elected to the 203-person chamber in November.

Democrats currently hold a 102-100 majority in the chamber. There is one vacancy. Ninety-six Democratic incumbents and 90 Republican incumbents are slated to appear on general election ballots in November.

To learn more about Pennsylvania’s 2024 House of Representatives elections, click below.