Running for Countywide Office in Belmont means competing for a countywide seat (Sheriff, DA, Assessor, Clerk-Recorder, Treasurer-Tax Collector) in front of every registered voter in the county. Most Belmont countywide office campaigns since 2018 have landed in the $100K–$2M depending on the office range and won on endorsements, earned media, ballot designation, and broad-reach mail. Belmont's hillside location on the Peninsula creates campaigns focused on managing development pressure from Silicon Valley while preserving neighborhood character. Its highly educated electorate expects substantive policy discussion. Filing paperwork goes through the county elections office — plan for the March filing window for the June primary, an FPPC Form 410 the moment fundraising crosses $2,000, and a ballot designation that survives challenge under Elections Code §13107. Local Campaign Pros runs countywide office campaigns for Belmont candidates end-to-end — strategy, mail design and print, voter data, lawn signs, field, and FPPC compliance built on the San Mateo County voter file.
Last reviewed: 2026-08-21