San Mateo Measure F: About 80% Yes on Charter Reform, District Elections and Vacancy Rules

SAN MATEO, California — November 5, 2026. San Mateo residents have given a substantial early Yes majority to a proposal to update the municipality’s governing charter. The November 4 county election report shows 13,609 Yes votes (79.77%) and 3,451 No (20.23%) on Measure F, a reported difference of 10,158 votes. The result has not been legally certified.

What changes would be made to the charter?

According to the city’s official Measure F ballot page and published impartial-analysis summary, the proposal would update the charter to reflect San Mateo’s existing district-based City Council election system, address the drawing of district boundaries after the federal census, revise procedures for scheduling council meetings and give the city more time to fill some council vacancies. It would also remove obsolete provisions. The proposed changes are not a tax increase and are legally distinct from Measure H.

Why city charters matter

A municipal charter defines key local government procedures and powers within California law. Revising it can affect how vacancies are filled and how electoral representation is structured, even when no new city department or funding measure is created. The city attorney’s analysis, rather than an individual campaign claim, is the proper reference for the exact legal amendments.

District elections continue to count separately

On the same ballot, San Mateo voters selected council representatives in Districts 1, 3 and 5. The District 5 contest, featuring Dana Yates Sahae, Adam Loraine and Dave Johnson, was separated by just five votes between its first two candidates in the earlier count. That narrow office election is not a contradiction of the broad early Yes margin on Measure F: the two ballots ask different questions and have different electorates.

How to follow later returns

The county-sourced November 4 election data can be compared with future official releases. Continued processing of valid ballots may alter the percentages. A simple-majority threshold applies to the charter proposal; however, numerical support in an incomplete batch is not the same as formal adoption after certification.

Official results are still pending

The San Mateo County Elections office is continuing to review eligible mailed ballots, provisional votes and other canvass items. The county’s next reports may raise candidate or measure totals. An election-night expected-vote percentage is not the same thing as certification. California county canvasses are required to conclude by December 3, and statewide certification is scheduled for December 11, 2026. Readers can consult San Mateo County Elections for the current election report.

California58 Local Elections Desk, published November 5, 2026. Vote tallies reflect the dated early-November-4 report carried by NBC Bay Area and other cited official local election sources. All figures remain unofficial.

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