The 2024 elections for the Pennsylvania House of Representatives were held on , with all districts up for election. The term of office for those elected in 2024 began when the House of Representatives convenes in January 2025. Pennsylvania State Representatives are elected for two-year terms, with all 203 seats up for election every two years. The primary elections to choose the respective parties' nominees took place on April 23.
On , the Democratic Party affirmed its first majority in the chamber since 2010 after winning three special elections. The 2024 elections saw no change in the partisan makeup of the House, with the Democrats maintaining a one-seat majority despite losing the popular vote.
Democrat John Galloway was elected magisterial district judge unopposed, succeeding District Judge Jan Vislosky upon her retirement. House Speaker Joanna McClinton scheduled a special election for February 13, 2024.
Democratic nominee and Pennsbury School Board member Jim Prokopiak defeated Republican nominee Candace Cabanas of Falls Township.
Republican Joseph Adams resigned from the House on February 9, 2024. A special election was held on April 23. Sterling Township supervisor Jeffrey Olsommer, the Republican nominee, defeated former Pike County Area Agency on Aging chair Robin Skibber, the Democratic nominee.
Democrat Donna Bullock resigned on July 15. A special election was held on September 17. Democratic 28th Philadelphia Ward leader Keith Harris was the only candidate on the ballot.
Democrat Stephen Kinsey resigned on July 16. A special election was held on September 17. Democrat Andre Carroll was the only candidate on the ballot.
Source:
Districts where the margin of victory was under 10%:
! scope="col" style="background-color: #800080; width: 8px;" | |scope="col"| Democratic/Republican |scope="col"|Joe McAndrew |scope="col"|31,207 |scope="col"|100.00