Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime 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 on September 23, 2026.
Alameda County, California, has about 1.6 million residents (2024 Census Bureau estimate). In California the public criminal record is the court file, kept by the Superior Court clerk; the statewide criminal history kept by the California Department of Justice is released only to its subject and to the employers and agencies the law allows. This guide says where each record of a criminal case from Alameda County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests, directory links and common questions.
Related guides: Alameda County public records, Alameda County arrest records, Alameda County warrants, Alameda County inmate search, Alameda County court records, California arrest records and California inmate search.
Criminal Cases in the Superior Court of California, County of Alameda
A criminal case from Alameda County is filed in the Superior Court of California, County of Alameda, and the court file, kept by the Superior Court clerk, is the record of it that the public may see.
The court records page SearchSystems verified for the county is at eportal.alameda.courts.ca.gov/?q=node%2F388 (page title: Search | Alameda eCourt Public Portal), 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 Criminal History and Your Own Copy
California does not let the public search another person's statewide criminal history. The record kept by the California Department of Justice goes to the person it belongs to and to employers and agencies the law authorizes; for everyone else the court file in the Superior Court of California, County of Alameda is the public record.
To see your own record, the route is a Record Review through Live Scan fingerprinting, form BCIA 8016RR; the state fee is $25. The response cannot be used for immigration or visa purposes. Details are on the California Department of Justice page.
Arrest Records Kept Locally in Alameda County
The Alameda County Sheriff's Office and the agencies that report for Oakland, Fremont, Hayward, Berkeley, San Leandro, Livermore and eight more cities keep the arrest records in Alameda County: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
The FBI's agency list also places six state police units, three other agencies, one state agency and three campus police departments in Alameda County (the arrest records guide names each one); each keeps the records of its own arrests.
Together, the 13 agencies in Alameda County with all twelve months of 2025 on file reported 14,194 arrests to the FBI that year; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in Alameda County arrest records.
The Crimes Behind the Records: Alameda County in 2025
The 15 agencies in Alameda County with all twelve months of 2025 on file reported 10,576 violent and 52,050 property crimes to the FBI that year; the same agencies with both 2025 and 2024 complete reported 62,626 crimes in 2025 against 81,335 in 2024. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the Alameda County public records guide.
The District Attorney for Alameda County
Charges in Alameda County are filed by the District Attorney, which reviews the arrests of every agency in the county and brings the cases in the Superior Court of California, County of Alameda.
The office's page SearchSystems verified is at da.alamedacountyca.gov (page title: Office of the Alameda County District Attorney), which answered when SearchSystems opened it on September 23, 2026.
The Sex Offender Registry for Alameda County
Registered sex offenders living in Alameda County are listed on the Megan's Law website, run by the California Department of Justice at meganslaw.ca.gov. The registry is tiered; some registrants are kept off the public site and others are shown by ZIP code only.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in Alameda County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
Under the California Public Records Act a county office must answer a request within 10 days, with up to 14 more days in unusual circumstances, and it may charge the direct cost of copying only, not staff time. The county records request page SearchSystems verified is at auditor.alamedacountyca.gov/public-records-request (page title: Public Records Request | Alameda County Auditor-Controller/Clerk-Recorder).
More Official Criminal Records Pages for Alameda County
The SearchSystems directory, online since 1997, lists the official pages for Alameda County and California. These criminal records pages from its Alameda County listing were opened again on October 2, 2026 and each one still answers:
- Crime Data, State of California (oag.ca.gov)
- Most Wanted, Alameda County Sheriff's Office, CA (alamedasheriff.gov)
Frequently Asked Questions
Are criminal records public in Alameda County?
The court files of criminal cases in the Superior Court of California, County of Alameda are public and can be looked up through the court. The statewide criminal history kept by the California Department of Justice is not public; you can get your own for $25. The arrest report itself is released by the agency that made the arrest, under the California Public Records Act.
Can I search Alameda County criminal cases online?
The court records page SearchSystems verified for the county is at eportal.alameda.courts.ca.gov/?q=node%2F388 (page title: Search | Alameda eCourt Public Portal).
How do I get my own California criminal history?
A Record Review through Live Scan fingerprinting, form BCIA 8016RR; the state fee is $25.
Who prosecutes crimes in Alameda County?
The District Attorney, which files its cases in the Superior Court of California, County of Alameda.
Is this the official Alameda County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.