San Mateo Election 2026: Here's Who's Winning And What's Passing

SAN MATEO, CA — San Mateo voters are choosing representatives for three City Council districts, while a special election is also underway to fill a seat on the San Mateo County Board of Supervisors.

The District 5 City Council contest featured three candidates, while the District 1 and District 3 races each have two candidates. The county supervisor race adds another closely watched contest to the ballot.

As of 1 p.m. on Friday, here’s where the races stood. Results are preliminary and will be updated as the San Mateo County Elections Office releases additional numbers.

The county reported they have processed 167,250 ballots but there are still 110,000 to go through.

San Mateo City Council, District 1

Lisa Diaz Nash and Taso Zografos are competing for the District 1 City Council seat.

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San Mateo City Council, District 3

Seema Patel and incumbent Rob Newsom Jr. are competing for the District 3 seat.

San Mateo City Council, District 5

Three candidates are competing for the District 5 seat: incumbent Adam Loraine, Dave Johnson and Dana Yates Sahae. With three candidates in the running, the latest vote totals will determine who emerges from the contest.

San Mateo County Board of Supervisors, District 5

A special election is being held to fill the District 5 seat on the San Mateo County Board of Supervisors. The candidates are Juslyn Cabrera Manalo, a Daly City councilmember, and Mark Nagales, a South San Francisco vice mayor.

California State Assembly, District 21

Democratic incumbent Diane Papan is facing Republican challenger Jabra J. Muhawieh in the race for California's 21st Assembly District.

U.S. House, District 15

Democratic incumbent Rep. Kevin Mullin is seeking another term against Republican challenger Charles Hoelter in California's 15th Congressional District.

Countywide Measures

Measure L – San Mateo County Charter Amendment: Extreme Weather Events

Measure L would amend the San Mateo County Charter to make long-term resilience to extreme weather a county priority. It identifies threats including wildfires, flooding, wind, rain, heat, drought and sea-level rise, and calls for the county to work with cities and other public agencies on resilience efforts.

Measure AA – San Mateo County Charter Amendment: Affirmation of Rights

Measure AA would add language to the county charter affirming San Mateo County's commitment to the dignity, civil rights and equal protection of all residents. The amendment also references equity, fairness, inclusion, belonging, accessibility and opportunity.

Measure J – San Mateo County Charter Amendment: Filling Vacancies

Measure J would give the San Mateo County Board of Supervisors up to 60 days, instead of 30, to appoint someone or call a special election when an elected county office becomes vacant, excluding the Board of Supervisors. It would also require at least one public meeting to hear comments before the board makes an appointment.

Measure U – San Mateo County Charter Amendment: Supervisorial Redistricting

Measure U would require San Mateo County's five supervisorial districts to be redrawn after each federal census by an independent redistricting commission instead of the Board of Supervisors. The measure would leave other requirements for supervisors unchanged, including residency, four-year terms and a three-term limit.

Local Measures

Measure H – City of San Mateo: Transactions and Use Tax

Measure H would establish an additional quarter-cent sales tax in San Mateo, increasing the city's existing transactions and use tax from 0.25 percent to 0.50 percent. The additional tax is estimated to generate about $7 million annually for city services, including street and infrastructure improvements, parks, police, fire, emergency response and traffic safety. The tax would remain in place until voters repeal it.

Measure F – City of San Mateo: Charter Amendment

Measure F would update the San Mateo City Charter to reflect the city's district-based election system and revise several government procedures. Among other changes, it would provide for redrawing council district boundaries after each federal census, extend the time to fill council vacancies from 30 to 60 days, update council meeting scheduling and remove obsolete charter provisions.

School Measures

Measure V – San Mateo County Community College District Bond Measure

Measure V would authorize up to $848 million in bonds for improvements at College of San Mateo, Cañada College and Skyline College. The funding could go toward repairing aging buildings and infrastructure, improving classrooms and labs, upgrading technology and making safety and accessibility improvements. The measure requires 55 percent voter approval.

Measure W – San Mateo-Foster City School District Bond Measure

Measure W would authorize up to $498 million in bonds for school facility improvements, including classroom and lab upgrades, roof and window repairs, fire alarm and emergency communication updates, and safety and accessibility improvements. The measure also includes funding for career-technical education facilities and equipment. It requires 55 percent voter approval.

The vote totals are preliminary. San Mateo County election officials will continue counting ballots and posting updated results.

Can't see the widgets? Click here for all County election results. Be sure to refresh this page for the latest.

Gubernatorial Race

California voters headed to the polls Tuesday, facing high gas and grocery prices, the effects of climate change on wildfires and rising seas amid a shortage in insurance coverage and the ever-present housing affordability crisis.

The governor’s race was somewhat anticlimactic following a chaotic primary with a crowded field of candidates roiled when the frontrunner was forced to step down amid sexual assault allegations. Since then, Becerra maintained a steady lead over Hilton in the polls.

In the final days of the election, a new SurveyUSA poll showed Becerra with a 22-point lead.

Click here for real-time results in the California Governor’s races.

Congressional Races

All 52 of California’s Congressional seats were on the ballot.

Congressional races across California were under intense scrutiny following voter approval of Proposition 50, a partisan redistricting measure expected to reshape the state’s political map. Thanks to the redistricting, only a handful of districts were truly competitive. Democrats hoped to flip as many as five Republican House seats in a bid to overturn the GOP’s slim House majority.

Democrats think they can flip as many as five seats, with four seeming very much in reach, according to the polls. Both parties are spending like control of the House is on the line.

Click here for real-time results in California’s Congressional races.

Propositions

There were 14 statewide propositions on the ballot this week. Arguably, the most hot-button ballot initiatives involve taxation. Proposition 40 is the highly discussed billionaire tax, while Propositions 41 and 42 aim to counter the measure. Proposition 3 also addresses taxes on the state's highest earners.

Click here for real-time results for all of California’s ballot measures.