SearchSystems Editorial

Reviewed and updated October 4, 2026 by the SearchSystems.net editorial team. Every office link on this page was opened and checked against the office's own website at review time.

About this guide

Contra Costa County is a county in California with about 1.2 million residents (2024 Census Bureau estimate). Its public records are not in one place: court cases, jail bookings, deeds, property values, vital records and records requests each belong to a different office. This guide names the office that holds each kind of record, links to its own website and gives the phone number and address where the office publishes them. SearchSystems verified 8 county office pages for Contra Costa County, every one opened and checked.

In this guide: Where the records live, Jail and arrests, Court records, County Clerk, Deeds and property, Vital records, District Attorney, Records requests, Statewide sources, More directory links, Cities and towns, Other counties and Questions.

Where Contra Costa County public records live

Each kind of Contra Costa County record is kept by a different office. The list below names the office SearchSystems verified for each one; the sections that follow give its phone, address and hours where the office publishes them.

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Arrests, jail and inmate lookups in Contra Costa County

A person arrested in Contra Costa County is booked into the jail, and the booking record (name, charges, bond and the next court date) is public in most cases. The office below is the one SearchSystems verified for jail and inmate information in Contra Costa County.

Jail rosters usually show the people in custody now. Once a person is released, the case continues in the court records below.

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Court records and case lookups in Contra Costa County

Civil, criminal, family, probate and traffic cases filed in Contra Costa County are kept by the clerk of the court that heard them. Many courts offer an online case search; the page below is the one SearchSystems verified for Contra Costa County.

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County Clerk of Contra Costa County

The county clerk is the county's record keeper. What the office holds differs by state: in some states it files marriage licenses and vital records, in others deeds, court papers or the meeting records of the governing board. Its own website below says what it holds in Contra Costa County.

  • Website: contracostavote.gov (page title: Contra Costa County | County Clerk Recorder | Kristin B. Connelly)
  • Checked: September 23, 2026, the page answered.

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Deeds, land records and property values in Contra Costa County

Two offices share property records. The recording office files deeds, mortgages, liens and the other documents that affect title to land in Contra Costa County. The assessment office sets the taxable value of each parcel and usually offers a free parcel search by address or owner name.

Recorded documents: County Recorder

Property values: County Assessor

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Birth, death and marriage records in Contra Costa County

Certified copies of birth and death certificates for events in Contra Costa County are issued by the office below. The California state vital records office also issues certified copies for any event in the state.

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District Attorney for Contra Costa County

The District Attorney is the office that prosecutes criminal cases in Contra Costa County. The case files themselves are court records (above); the prosecutor's office handles victim services and questions about pending prosecutions.

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Public records requests to Contra Costa County

Every state has a public records law that applies to county offices. A record that is not posted online is requested from the office that holds it. Many counties run one request page for every department; it is listed below when SearchSystems verified one for Contra Costa County.

  • Website: contracosta.ca.gov/8129/Public-Records-Requests (page title: Public Records Requests | Contra Costa County, CA Official Website)
  • Phone: 925-608-6600
  • Address: 2380 Bisso Lane Suite A Concord, CA 94520
  • Checked: September 23, 2026, the page answered.

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Statewide California sources

Some records are kept by the state rather than the county. These are the California state offices SearchSystems verified; each link opens the state office's own page.

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Cities and towns in Contra Costa County

Contra Costa County has 19 incorporated cities and towns (2024 Census Bureau count, population in parentheses). City records such as council minutes, permits, business licenses and police reports are kept by each city; the records on this page are county records whatever the city. SearchSystems has a guide to the city offices of each linked city; the linked names open them.

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Contra Costa County Arrest Records

The Contra Costa County arrest records guide names the 25 agencies that report arrests to the FBI here and the 17,288 arrests the 21 agencies with every month of 2025 on file reported that year. It also says where a person arrested here is held, how to find out about an arrest and how to get a copy of the report.

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Contra Costa County Records Guides

SearchSystems has nine more guides to Contra Costa County, each written from the county's own offices and figures: Contra Costa County warrants (who issues and serves them, where a person arrested on one is held, how to check for one), Contra Costa County inmate search (the custody page of the Contra Costa County Sheriff's Office, the jail numbers and who books people), Contra Costa County criminal records (the court file, the California criminal history and the local arrest records), Contra Costa County court records (which court hears what, the case search and who keeps the files), Contra Costa County police reports (which agency holds a report and what the California Public Records Act requires), Contra Costa County traffic tickets (which court takes the ticket, who writes them and the driving record), Contra Costa County DUI (the DUI law, the arrest, the court case and the license case), Contra Costa County divorce records (which court holds the file and how a certified copy is had) and Contra Costa County property records (deeds, assessed values, permits and evictions).

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Frequently Asked Questions

Is this the official Contra Costa County website?

No. SearchSystems.net is an independent public records directory, online since 1997. It links to the official offices listed above; SearchSystems does not hold records, charge for them or take requests.

How do I find out if someone is in jail in Contra Costa County?

Use the jail or inmate page SearchSystems verified for Contra Costa County at cocosheriff.org/how-do-i/inmate-information. Rosters usually show the people in custody now; after release, the case continues in the court records.

Where do I look up a court case in Contra Costa County?

The court records page SearchSystems verified for Contra Costa County is at contracosta.courts.ca.gov. A case number finds a case fastest; a name search returns every case with that name.

Who records deeds in Contra Costa County?

The County Recorder, at contracostavote.gov. Deeds, mortgages and liens on land in Contra Costa County are filed there.

How do I get a birth or death certificate for Contra Costa County?

From the office SearchSystems verified for Contra Costa County vital records at contracosta.ca.gov/m/faq?cat=87#question-641, phone 925-335-7910, or from the California state vital records office.

How do I request a public record from Contra Costa County?

Through the records request page at contracosta.ca.gov. A record that is not covered there is requested from the office that holds it.