2018 Santa Clara County Board of Supervisors election

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2018 Santa Clara County Board of Supervisors election
June 5 (primary)
November 6 (runoff)
2 of the 5 seats of the Santa Clara County Board of Supervisors

The 2018 Santa Clara County Board of Supervisors election were held on June 5, 2018, to elect two of the five seats of the Santa Clara County Board of Supervisors, with runoffs held on November 6, 2018.[1][2] Runoffs only occurred if no candidate received more than 50% of the votes cast in the contest. Local elections in California are officially nonpartisan.[3] The Santa Clara County Board of Supervisors is the governing body for Santa Clara County. Each supervisor is elected to a 4-year term, with each supervisor capped at 3 consecutive terms in office.[4]

District 1

Incumbent Mike Wasserman was elected to the 1st district in 2010 and 2014. He was eligible for reelection.

Endorsements

Mike Wasserman
Organizations
  • Bay Area Municipal Elections Committee[5]

Results

2018 Santa Clara County Board of Supervisors 1st district election[1]
Primary election
Candidate Votes %
Mike Wasserman (incumbent) 57,120 100.0
Total votes 57,120 100.0

District 4

Incumbent Ken Yeager was elected to the 4th district in 2006, 2010, and 2014. He was ineligible for reelection.

Endorsements

Susan Ellenberg
Organizations
  • Bay Area Municipal Elections Committee (dual endorsement)[6]
  • Dean Democratic Club of Silicon Valley[7]
  • Santa Clara County League of Conservation Voters (dual endorsement)[8]
  • Sierra Club Loma Prieta Chapter (dual endorsement)[9]
Political party organizations
  • Santa Clara County Democratic Party (dual endorsement)[10]
Individuals
Don Rocha
Organizations
  • Bay Area Municipal Elections Committee (dual endorsement)[6]
  • Santa Clara County League of Conservation Voters (dual endorsement)[8]
  • Sierra Club Loma Prieta Chapter (dual endorsement)[9]
Political party organizations
  • Santa Clara County Democratic Party (dual endorsement)[10]
Labor unions
Individuals
Dominic Caserta
Pierluigi Oliverio
Organizations
  • Silicon Valley Organization[13]

Results

2018 Santa Clara County Board of Supervisors 4th district election[1][2]
Primary election
Candidate Votes %
Susan Ellenberg 22,803 33.3
Don Rocha 14,135 20.7
Pierluigi Oliverio 13,328 19.5
Jason Baker 7,934 11.6
Dominic Caserta 4,442 6.5
Mike Alvarado 3,481 5.1
Maria Hernandez 2,269 3.3
Total votes 68,392 100.0
General election
Susan Ellenberg 65,227 59.2
Don Rocha 44,942 40.8
Total votes 110,169 100.0

References

  1. "June 5, 2018 - Statewide Direct Primary Election". Santa Clara County Registrar of Voters. July 9, 2018. Retrieved April 2, 2026.
  2. "November 6, 2018 General Election". Santa Clara County Registrar of Voters. December 28, 2018. Retrieved April 2, 2026.
  3. "Nonpartisan Offices". UC Law SF. Retrieved January 14, 2026.
  4. "County of Santa Clara Board of Supervisors". California Local. Retrieved March 25, 2026.
  5. "BAYMEC Endorses Mike Wasserman for Santa Clara County District 1 Supervisor". Bay Area Municipal Elections Committee. Retrieved April 2, 2026.
  6. Wadsworth, Jennifer (October 23, 2018). "Election 2018: San Jose Councilman Battles SJUSD Trustee for County's D4 Seat". San Jose Inside. Retrieved April 6, 2026.
  7. "Endorsements by Date". Dean Democratic Club of Silicon Valley. Retrieved April 2, 2026.
  8. "SCCLCV Endorsements". Santa Clara County League of Conservation Voters. Retrieved April 2, 2026.
  9. Wadsworth, Jennifer (October 23, 2018). "Election 2018: San Jose Councilman Battles SJUSD Trustee for County's D4 Seat". San Jose Inside. Retrieved April 2, 2026.
  10. "2018 Endorsements". Santa Clara County Democratic Party. Retrieved April 2, 2026.
  11. "South Bay Labor Council Announces Endorsements for County Supervisor and San Jose Council Races". The Left Hook. February 14, 2018. Retrieved April 2, 2026.
  12. "Major Wins for Local 21 on Election Day". IFPTE Local 21. November 30, 2018. Retrieved April 2, 2026.
  13. Wadsworth, Jennifer (February 22, 2018). "SVO Endorses Pierluigi Oliverio for Santa Clara County Supervisor". San Jose Inside. Retrieved April 6, 2026.