The 2025 San Diego County Board of Supervisors special election was held on Tuesday, July 1, 2025 to fill the 1st Supervisorial District seat on the San Diego County Board of Supervisors vacated by Nora Vargas, who resigned on January 6, 2025, for "personal safety and security reasons." The primary election was held on Tuesday, April 8, 2025, in which Chula Vista mayor John McCann and Imperial Beach mayor Paloma Aguirre advanced to the runoff election. Aguirre defeated McCann and is expected to be sworn in on July 22, 2025.
Municipal elections in California are officially non-partisan, and although most candidates do identify a party preference, their party affiliations do not appear on the ballot. As no candidate won a majority of votes in the primary, a runoff election was held between the top two vote-getting candidates.
On December 20, 2024, Chair Nora Vargas announced that she would not take the oath of office for a second term, despite having won 62.5% of the vote just weeks beforehand in the 2024 San Diego County Board of Supervisors election, citing "personal safety and security reasons." Vice chair Terra Lawson-Remer became acting chair of the board, and on January 14, 2025, the board voted to hold a special election to fill the vacancy left by Vargas' resignation.
Top election issues include the Tijuana River sewage crisis, homelessness, immigration, and housing affordability, part of a broader housing crisis statewide.
Official campaign websites