The 2024 Maricopa County Board of Supervisors elections were held on November 5, 2024. Primary elections were held on August 6. All five seats of the Maricopa County, Arizona Board of Supervisors were up for election.
After the elections, the Republican Party won four seats on the board, while the Democratic Party won one.
The incumbent is Republican Jack Sellers, who was elected with 50.0% of the vote in 2020, defeating his opponent by just 403 votes. Democrat Joe Biden won this district with 50.5% of the vote in the 2020 presidential election.
The incumbent is Republican Thomas Galvin, who was appointed to the seat in 2021 after the resignation of Steve Chucri and then ran unopposed in a 2022 special election to serve the remainder of Chucri's term. Republican Donald Trump won this district with 52.7% of the vote in the 2020 presidential election.
The incumbent is Republican Bill Gates, who was re-elected with 50.7% of the vote in 2020. Democrat Joe Biden won this district with 53.8% of the vote in the 2020 presidential election.
The incumbent Republican Clint Hickman was re-elected with 58.5% of the vote in 2020 and declined to run again. Republican Donald Trump won this district with 56.9% of the vote in the 2020 presidential election.
The incumbent is Democrat Steve Gallardo, who was re-elected with 97.6% of the vote in 2020 with only write-in opposition. Democrat Joe Biden won this district with 67.7% of the vote in the 2020 presidential election.