General elections for the New Hampshire House of Representatives will take place on November 5, 2024.

All 400 seats in 203 districts are up for election. Republicans hold a 197-191 majority in the chamber, with one independent and 11 vacancies. Republicans have controlled the House since 2021.

The New Hampshire House of Representatives has a combination of single-member legislative districts, where a district elects one representative, and multi-member legislative districts, where a district elects multiple representatives. The number of seats per district is determined by population. Multi-member districts in New Hampshire use a bloc with partial abstention voting method, where voters receive as many votes as there are seats, can only vote for a candidate once, and can choose to not use all of their votes.

According to Politico, the New Hampshire Legislature is one of the most likely to change partisan control in 2024. Since 2010, the House has changed partisan control six times. According to NBC News, House Democrats are campaigning on passing legislation to guarantee abortion access in the state, while House Republicans are campaigning on addressing crime and drug use.

Ballotpedia identified 57 battleground districts heading into the election. Twenty-seven of the battleground races are in single-member districts, with Democrats representing 13 and Republicans representing 14. Thirty of the battleground races are in multi-member districts, with Democrats representing two, Republicans representing 11, and 17 split between parties. Incumbents are running in 48 of these races, while the other nine are in open districts, meaning no incumbents are running. To read more about the battleground elections, click here.

Eight incumbents lost in primaries. Ninety-one incumbents did not seek re-election.

New Hampshire is one of 23 states that has a Republican trifecta, since Republicans control the governorship and both legislative chambers. The outcome of this election could change New Hampshire’s trifecta status. If Democrats gain a majority in the House or Senate, the state would have a divided government. Ballotpedia identified New Hampshire’s Republican trifecta as highly vulnerable. To read more about trifecta vulnerability in the 2024 elections, click here.

The New Hampshire House of Representatives is one of 85 state legislative chambers with elections in 2024 across 99 chambers throughout the country. The primaries were held on September 10, 2024.