2024 Orange County, California elections

The 2024 Orange County, California elections were held on March 5, 2024 (for general elections) and November 5, 2024 (for runoff elections). Two Board of Supervisors seats (districts 1 and 3) are the only county offices up for election in presidential years. The other county supervisorial district seats (districts 2, 4, and 5) and countywide offices are up for election in midterm years. County elections in California are officially nonpartisan.

Board of Supervisors
The 2024 Orange County Board of Supervisors elections were held on March 5, 2024 (for general elections) and November 5, 2024 (for runoff elections). Municipal elections in California are officially nonpartisan.

Two of the five seats of the Orange County, California Board of Supervisors will be up for election. The Democratic Party currently holds three seats on the board, while the Republican Party holds two.

County elections in California are officially nonpartisan. The parties below identify which party label each candidate would have run under if given the option.

District 1
The 1st district includes Huntington Beach, as well as Fountain Valley, Seal Beach, Westminster, and most of Garden Grove. Incumbent Andrew Do, a Republican, is term-limited and ineligible to run for a third term.

Candidates

 * Kimberly Ho (Republican), Westminster city councilor
 * Frances Marquez (Democratic), Cypress city councilor
 * Janet Nguyen (Republican), California state senator and former Orange County supervisor
 * Van Tran (Republican), member of the Orange County Water District Board of Directors, chief of staff to incumbent Andrew Do, and former California state assemblyman
 * Michael Vo (Republican), former mayor of Fountain Valley

Runoff
Because no candidate received a majority of the vote in the first round in March, State Senator Janet Nguyen and Cypress city council member Frances Marquez advanced to a runoff, which will be held on November 5, 2024.

District 3
The 3rd district includes Irvine and portions of Orange and Anaheim. Incumbent Republican Donald Wagner ran for re-election.

Candidates

 * Farrah Khan (Democratic), mayor of Irvine
 * Donald Wagner (Republican), incumbent supervisor

General election
Incumbent Donald Wagner won a majority of the vote on March 5, winning re-election in the first round and avoiding a runoff.