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San Mateo County, California Public Records

Find the right office in San Mateo County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them, with addresses and phone numbers.

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About public records in San Mateo County

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County profile

San Mateo County at a glance

State
California
County seat
Redwood City
Population
764,442
Area
744 sq mi
Founded
1856
Cities and towns
26

San Mateo County offices and records

Sheriff & Law Enforcement. San Mateo County Sheriff's Office is responsible for law enforcement in the unincorporated areas of San Mateo County, as well as managing San Mateo County jail system.

Police Departments. San Mateo County is served by several law enforcement agencies, including San Mateo County Sheriff's Office and municipal police departments such as the Daly City Police Department, San Mateo Police Department, and South San Francisco Police Department. These agencies collaborate on major crimes and emergencies, often coordinating with the Sheriff's Office for resources and support in larger investigations.

Law Enforcement & Arrests. San Mateo County Sheriff's Office, headquartered at 400 County Center, Redwood City, CA 94063 (phone: 650-363-4911, website: smcsheriff.com), is the primary law enforcement agency for unincorporated areas and provides countywide services including jail operations, court security, and civil process. Municipal police departments serve the incorporated cities: Daly City Police Department, San Mateo Police Department, Burlingame Police Department, Millbrae Police Department, San Bruno Police Department, South San Francisco Police Department, Pacifica Police Department, Redwood City Police Department, Menlo Park Police Department, Atherton Police Department, Brisbane Police Department, and Half Moon Bay Police Department, while smaller cities contract with the Sheriff's Office for law enforcement services. Arrest records in San Mateo County are public records subject to disclosure under the California Public Records Act (Government Code Section 6250 et seq.). No tribal police jurisdictions exist within San Mateo County, though the California Highway Patrol maintains significant presence on Interstate 280, Highway 101, and State Route 1.

Arrest Records. Arrest records in San Mateo County are maintained by San Mateo County Sheriff's Office and the various municipal police departments within San Mateo County.

Mugshots & Booking Photos. Mugshots in San Mateo County are taken and retained by San Mateo County Sheriff's Office during the booking process.

The Superior Court of California, County of San Mateo, is the unified trial court handling all civil, criminal, family law, probate, juvenile, and traffic matters. The court operates multiple facilities with the main courthouse located at 400 County Center, Redwood City, CA 94063 (phone: 650-261-5000, website: sanmateocourt.org). San Mateo County Assessor-Clerk-Recorder-Chief Elections Officer, located at the same address (phone: 650-363-4988, website: assessor.smcgov.org), maintains property tax assessment rolls, ownership records, and exemption information.

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San Mateo County public-records FAQs

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Where can I find mugshots or booking photos in San Mateo County, California?

Mugshots or booking photos in San Mateo County are typically managed by the San Mateo County Sheriff's Office. While these photos are part of public records, they may not be readily available online due to privacy laws. You can request access to these records by contacting the Records Division of the Sheriff's Office directly. It's important to note that the availability of such records may be subject to certain restrictions under California law.

How do I get a criminal background check in San Mateo County, California?

To obtain a criminal background check in San Mateo County, you need to contact the California Department of Justice (DOJ), which handles statewide background checks. Locally, you can visit the San Mateo County Sheriff's Office to request fingerprinting services, which are required for the DOJ background check process. The results will include criminal history information specific to California and are typically used for employment, licensing, or personal review purposes.

How can I look up sex offenders in San Mateo County, California?

You can look up sex offenders in San Mateo County by accessing the California Megan's Law website, which is the official state registry. This online database allows you to search for registered sex offenders by name, address, or proximity to a specific location. The website provides detailed information about each offender, including their offenses and current status, helping residents stay informed about their community.

How do I register to vote in San Mateo County, California?

You can register to vote in San Mateo County through the California Secretary of State's online portal at registertovote.ca.gov or by submitting a paper application to the San Mateo County Registration & Elections Division at 40 Tower Road, San Mateo, CA 94402 (phone: 650-312-5222). The registration deadline is 15 days before any election, though California offers conditional voter registration through Election Day at the Elections Office or any vote center. Once registered, you will automatically receive vote-by-mail ballots for all elections, and you can request replacement ballots or find vote center locations at smcacre.org.

How do I look up property records in San Mateo County, California?

Property records in San Mateo County can be searched through two primary offices: the County Recorder-Clerk at recorder.smcgov.org for recorded documents like deeds, mortgages, and liens (free search available from 1976 forward), and the County Assessor at assessor.smcgov.org for property tax assessments, ownership information, and sales history (completely free). Both offices are located at 555 County Center, Redwood City, CA 94063. The county's GIS parcel viewer at gis.smcgov.org integrates property boundaries, zoning, and environmental data. Certified copies of recorded documents cost $11 for the first page plus $3 per additional page.

How do I get a birth or death certificate in San Mateo County, California?

Birth and death certificates for events occurring in San Mateo County are available from the County Clerk-Recorder's Office at 555 County Center, 1st Floor, Redwood City, CA 94063 (phone: 650-363-4500, website: recorder.smcgov.org). Birth certificates cost $28 for the first certified copy and death certificates cost $21, with additional copies available at reduced rates. You can order in person for same-day service, by mail with 10-15 business day processing, or online through authorized vendors for expedited delivery. Valid photo identification and proof of eligibility under California Health and Safety Code Section 103526 (immediate family member, legal representative, or authorized person) are required.

How do I find business license records in San Mateo County, California?

Business licenses in San Mateo County are primarily issued by individual cities, so you should contact the city clerk or finance department where the business operates. For Fictitious Business Name (DBA) statements filed in San Mateo County, contact the County Clerk-Recorder at 650-363-4500 or visit 555 County Center, Redwood City. For corporations, LLCs, and other registered business entities, search the free California Secretary of State database at bizfileonline.sos.ca.gov. Professional licenses can be verified through California state licensing boards at search.dca.ca.gov.