Executive Staff

Administration's primary mission is to prepare the department to successfully meet the challenges and opportunities that the 21st Century will bring to San Mateo County.

Sheriff Kenneth Binder

Sheriff Kenneth Binder, a law enforcement leader with nearly three decades of service, was sworn in as San Mateo County’s 27th Sheriff on Nov. 12, 2025. A career public servant, he is known for his leadership, integrity and commitment to organizational excellence.
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Undersheriff Chris Hsiung

Chris Hsiung serves as the Undersheriff of San Mateo County, bringing more than 30 years of public safety and executive leadership experience from throughout the Bay Area to the San Mateo County Sheriff’s Office.
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