- contracostavote.gov (opens in a new tab)Contra Costa County Elections Division -- "Positions Up for Election, November 3, 2026, General Election": the only county-section contest in the document is County Board of Education Areas 2, 4, and 5 (under Schools) -- no Board of Supervisors, row office, or Superior Court seat appears anywhere, consistent with both Supervisor seats up this cycle (Districts 1 and 4) having been decided outright in the June 2026 primary
- contracostavote.gov (opens in a new tab)Contra Costa County Elections Division -- "Contest/Candidate Proof List" (8-27-26_candidatelist_detail_final.pdf), the county's post-certification ballot-order-proofing export: shows Area 2 as a 3-candidate contest (Sarah Butler, incumbent; Pamela West; Sibyl Minighini) with each candidate's filed ballot designation and qualification date -- this export omits single-filer contests entirely, which is why Areas 4 and 5 do not appear in it (see cc-candidate-summary-2026)
- contracostavote.gov (opens in a new tab)Contra Costa County Elections Division -- "Candidate List" (8-14-26_candidatelist_summary_final.pdf), the county's complete qualified-candidate roster including single-filer contests: confirms Area 2 (Sarah Butler, Pamela West, Sibyl Minighini), Area 4 (Mike Maxwell, sole qualified candidate), and Area 5 (Clyde Henry Lewis, Jr., sole qualified candidate)
- sanramon.ca.gov (opens in a new tab)City of San Ramon — City Clerk's Elections page: confirms the Nov. 3, 2026 local election date and vote-by-mail logistics; the city's own City Council roster page (read the same session) names the sitting 5-member council — Mayor Mark Armstrong, Vice Mayor Marisol Rubio, and Councilmembers Robert Jweinat, Richard Adler, and Sridhar Verose.
- en.wikipedia.org (opens in a new tab)Wikipedia's San Ramon, California article — 2020 census population 84,605; incorporated July 1, 1983.
- danvillesanramon.com (opens in a new tab)DanvilleSanRamon — "San Ramon Valley candidates finalized for November ballot" (2026-08-14): confirms the final San Ramon Valley-wide candidate roster after the non-incumbent filing extension closed, with no further changes to the three San Ramon city races.
- sanramon.ca.gov (opens in a new tab)City of San Ramon — Vice Mayor Marisol Rubio's official City Council bio page: a former Dublin San Ramon Services District board Director/Vice President elected to San Ramon council District 4 on Nov. 8, 2022; UC Berkeley graduate in Molecular and Cell Biology; extensive volunteer record in disability rights, environmental, and reproductive-health advocacy.
- danvillesanramon.com (opens in a new tab)DanvilleSanRamon — "Rubio running for second term on San Ramon City Council" (2026-07-28): Rubio's campaign announcement, her 2022 win over Heidi Kenniston-Lee, her unsuccessful 2024 State Senate run against Tim Grayson, and confirmation that as of this article her campaign remained in an early fundraising phase with no official website yet available.
- danvillesanramon.com (opens in a new tab)DanvilleSanRamon (Embarcadero Media) — "Contested elections for San Ramon, Danville councils; one SRVUSD incumbent faces challenge" (2026-08-07): the county filing-deadline roundup naming all three San Ramon city races as contested — Armstrong vs. Ntatsos vs. Chigbu for Mayor, Adler vs. Kathrani for District 2, Rubio vs. Joh for District 4 — and noting a fourth mayoral prospect (Brian Swanson) and a third District 4 prospect (Nick Harvey) each pulled papers but did not qualify.
- danvillesanramon.com (opens in a new tab)DanvilleSanRamon — "San Ramon council set for advisory body appointments" (2026-08-30): names Jeffrey Joh, identified as "a city council candidate challenging District 4 councilmember Marisol Rubio," as one of two applicants for a Contra Costa Transportation Authority citizens'-advisory-committee seat — independent, dated corroboration of civic engagement beyond the county's own filing record.
- danvillesanramon.com (opens in a new tab)DanvilleSanRamon — "San Ramon council raises campaign expenditure limits for upcoming general election" (2026-06-15): the city council's June 9, 2026 vote setting this cycle's voluntary campaign-expenditure limits at $91,453 for Mayor and $39,938 / $36,597 for Council Districts 2 and 4 respectively — the ceiling, not a report of what any 2026 candidate actually raised.
Last updated September 7, 2026.
City of San Ramon
San Ramon City Council, District 4
This person would hold one of San Ramon's four district-elected City Council seats. A separately, citywide-elected Mayor also sits on the five-member council. An appointed City Manager runs day-to-day operations. They vote on city laws, the budget, and land use. San Ramon has about 84,600 residents. The term is four years. Whichever candidate gets the most votes wins. San Ramon does not use ranked-choice voting.
Vice Mayor Marisol Rubio is the incumbent in District 4. She is running for the City Council seat again. She faces first time candidate Jeffrey Joh.
This person would hold one of San Ramon's four district-elected City Council seats, alongside a separately, citywide-elected Mayor, on a 5-member council with an appointed City Manager who runs day-to-day operations. They vote on city ordinances, the budget, and land use for a city of about 84,600 residents (2020 census). The term is four years. Whichever candidate gets the most votes wins -- no ranked-choice voting is documented for San Ramon.
District 4 pairs an incumbent finishing her first full council term -- with a 2022 election win and a 2024 run for higher office on her record -- against a first-time candidate with no prior campaign or public record beyond one committee application this cycle. The two candidates' public track records differ sharply in length.
Marisol Rubio
Marisol Rubio is the incumbent Vice Mayor. She is seeking her first full reelection to District 4. She won the seat in 2022 and lost a 2024 run for State Senate. On the council, she championed the city's new Sustainability Advisory Committee.
Jeffrey Joh
Jeffrey Joh is a first time candidate. Their ballot title is technology strategist. An Aug. 30, 2026 article named them as an applicant for a transportation committee seat. No other campaign details were found for them.
Your pick
A nonpartisan office: candidates do not run as Democrats or Republicans, and no party appears on the ballot.