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Elections / Offices / Santa Clara County Board of Supervisors — District 1

Santa Clara County Board of Supervisors — District 1

June 2026 California Primary June 2, 2026 Upcoming

AI Race Summary

Covers South County — Morgan Hill, Gilroy, San Martin, Evergreen, and southern San Jose. Sylvia Arenas, the first Democrat to hold this seat in 25 years, faces Morgan Hill Unified School District trustee Rebecca Munson. Arenas is solidly aligned with the South Bay Labor Council; Munson is running as the moderate, fiscal-discipline alternative, with a focus on public safety, county hospital efficiency, and partnerships with cities on homelessness.

Candidates · sorted by endorsements

Rebecca Munson

Rebecca Munson

No Party Preference · Morgan Hill Unified School District trustee

Educator and trustee of the Morgan Hill Unified School District. Running on public safety, fiscal accountability, making county-run hospitals more self-sustaining, and partnering with mayors of South County cities on homelessness and mental-health response. Pitching herself as a problem-solver and the moderate alternative to Arenas's labor-aligned record.

Sylvia Arenas

Sylvia Arenas

No Party Preference · Santa Clara County Supervisor (incumbent)

Elected to the Board of Supervisors in 2022 with 54.4% of the runoff vote after serving six years on the San José City Council. Arenas was the first Latina elected to the Santa Clara County Board of Supervisors and the first Democrat to win the South County District 1 seat in a quarter century. South Bay Labor Council "Unionist of the Year." Focus areas include behavioral-health expansion, county hospital funding, child-care access, and tenant protections.