The Ballot Brief
California
Candidate profile
Diane Papan

Diane Papan

Democratic · California · 2026 · Incumbent

On the ballot

California Assembly District 21California · 2026San Mateo County sample ballot
Top priorities
  • Investing in year-round wildfire prevention.
  • Amending the State Constitution to protect reproductive freedom, including access to contraceptives.
  • Expanding use of recycled and reclaimed water to address drought.

Per the campaign site.

Biography

Diane Papan was first elected to the Assembly in November 2022 and represents the 21st District, covering the Bayside of San Mateo County from Brisbane to East Palo Alto, per her official Assembly biography. She previously served as mayor and a city councilmember for San Mateo. She is running for reelection as the Democratic candidate.

Campaign site (opens in a new tab)

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Voting info and more

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How we source this

Profile facts follow official election office filings and the sources cited in each biography. Official sources are the final word on who appears on your ballot.

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