San Mateo County voters head to the polls on June 2, 2026, for a primary election featuring several competitive local races. Key contests include a rare open-seat judgeship, a new superintendent of schools, and a county supervisor race.
- Judge of the Superior Court, Office No. 4: Jay Boyarsky vs.
Brian Donnellan. - Superintendent of Schools: Héctor Camacho vs.
Chelsea Bonini. - Board of Supervisors, District 3: Ray Mueller vs.
Joaquín Jimenez. - Assessor-County Clerk-Recorder: Jim Irizarry vs.
David Canepa. Polls close at 8 p.m., and vote-by-mail ballots must be postmarked today.