Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 23, 2026 and September 25, 2026.
Hillsborough, California, in San Mateo County, has about 11,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Superior Court of California, County of San Mateo, and the file of each case, kept by the Superior Court clerk, is the public record of it. This guide says which court hears what, where to look a case up and who keeps the files.
This guide covers the courts, the records page, criminal cases, kinds of files, directory links and common questions.
Related guides: Hillsborough public records, San Mateo County court records, Hillsborough arrest records, Hillsborough warrants, Hillsborough criminal records, Hillsborough police reports, California arrest records and California inmate search.
The Courts That Hear Cases from Hillsborough
Court cases from Hillsborough are filed in the Superior Court of California, County of San Mateo, which hears every civil, criminal, family, probate, traffic and juvenile case.
Divorces go to the Superior Court's family law division, and the file stays with the Superior Court clerk.
The Superior Court clerk keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the California Public Records Act.
Looking Up a Case from Hillsborough
The court records page SearchSystems verified for the county is at sanmateo.courts.ca.gov/online-services/information-accessing-your-c... (page title: Information on Accessing Your Case Online | Superior Court of California | County of San Mateo), phone 650-261-5100, which answered when SearchSystems opened it on September 23, 2026.
California has no single public index of every trial court case; each court's records are looked up through that court.
The California court page SearchSystems verified is at courts.ca.gov/policy-administration/public-records/who-where-how-vi....
What Reaches the Court from Hillsborough
Together, the 17 agencies in San Mateo County with all twelve months of 2025 on file reported 13,525 arrests to the FBI that year; the District Attorney decides which of those arrests become cases in the Superior Court of California, County of San Mateo.
The District Attorney's page SearchSystems verified is at smcgov.org/da (page title: District Attorney | County of San Mateo, CA), phone (650) 363-4636, which answered when SearchSystems opened it on September 23, 2026.
The Kinds of Court Files
Criminal cases, divorces, traffic tickets and evictions all end up as files of these courts, and the file is what the public sees of each.
The other Hillsborough guides take the kinds of file one at a time: Hillsborough criminal records, Hillsborough divorce records, Hillsborough traffic tickets, Hillsborough DUI and Hillsborough property records.
More Official Court Pages for San Mateo County
The SearchSystems directory, online since 1997, lists the official pages for San Mateo County and California. These court pages from its San Mateo County listing were opened again on October 2, 2026 and each one still answers:
- Public Access to Judicial Administrative Records (sanmateo.courts.ca.gov)
- Records Management (sanmateo.courts.ca.gov)
- Viewing Court Records (sanmateo.courts.ca.gov)
Frequently Asked Questions
How do I look up a court case in Hillsborough?
The court records page SearchSystems verified for the county is at sanmateo.courts.ca.gov, phone 650-261-5100.
Which court hears felonies in Hillsborough?
The Superior Court of California, County of San Mateo, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Hillsborough?
The Superior Court clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in California?
No. Each court's records are looked up through that court.
Is this the official Hillsborough website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.