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Contra Costa County, California Public Records

Find the right office in Contra Costa County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them.

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Most requested Contra Costa County records

Every card below goes to the government office responsible for that record. Use the category buttons to narrow the list.

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Showing 12 official sources

Official

Court records

Contra Costa County Small Claims Court

Small claims cases in Contra Costa County are heard by the Superior Court of California, and the court gives the limits, the fees and the forms used to file one.

cc-courts.org
Open official site Contra Costa County Small Claims Court

Local record guide

About public records in Contra Costa County

County profile

Contra Costa County at a glance

State
California
County seat
Martinez
Population
1,165,927
Area
804 sq mi
Founded
1850
Cities and towns
29

Contra Costa County offices and records

Sheriff & Law Enforcement. Contra Costa County Sheriff's Office is responsible for law enforcement in the unincorporated areas of Contra Costa County.

Police Departments. Contra Costa County is served by several law enforcement agencies, including Contra Costa County Sheriff's Office and municipal police departments such as the Concord Police Department, Richmond Police Department, and Walnut Creek Police Department.

Law Enforcement & Arrests. Contra Costa County Sheriff's Office, headquartered at 1980 Muir Road in Martinez, serves unincorporated areas and provides countywide law enforcement services including jail operations, court security, and investigations. Arrest records in Contra Costa County are public records accessible under the California Public Records Act (Government Code Section 7920.000 et seq.), which requires agencies to provide public access to records unless specifically exempted.

Criminal Records. These records are maintained by Contra Costa County Superior Court and the sheriff's office.

Arrest Records. Arrest records in Contra Costa County are maintained by Contra Costa County Sheriff's Office and local police departments.

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

Property tax information is managed by Contra Costa County Assessor's Office at 2530 Arnold Drive, Suite 100, Martinez, CA 94553 (phone: 925-313-7400). Contra Costa County Recorder-Clerk's Office, located at 555 Escobar Street in Martinez, California 94553 (phone: 925-335-7900), maintains and provides access to official land and property records for Contra Costa County. The court operates multiple facilities throughout Contra Costa County. The main courthouse is located at 1020 Ward Street in Martinez (925-608-1000), with additional courthouses in Richmond at 100 37th Street, Walnut Creek at 640 Ygnacio Valley Road, Pittsburg at 1000 Center Drive, and a historic courthouse in Martinez at 725 Court Street handling primarily family law matters.

Abandoned mine records

Old mine workings in Contra Costa County

Where the workings are, and the office that holds the mine maps.

From the old mine records

What is on record in Contra Costa County

Old mine sites
151
Sites with no status in the records
12
Still producing
31
Worked underground, in the mine records
1
Main minerals
Stone; Mercury; construction sand and gravel
Holes drawn on the old survey maps
113
Shafts and tunnels
17
What they are
gravel/borrow pit - undifferentiated, quarry, adit, mine shaft
Maps surveyed
1947 to 1997
Records behind them
344 records for 307 sites, the rest are the same working written down more than once

Is an old working under a property here?

The mine records hold 194 named mine sites inside the county, 151 of them worked out or abandoned; the old survey maps add 113 holes drawn inside the county, 17 of them shafts or tunnels. The minerals the records name are Stone; Mercury; construction sand and gravel.

A point in either file is a location, not a property line: the sheet shows the opening on the surface, not the rooms under it. The record that shows what runs under a parcel is the mine map. The OSMRE National Mine Map Repository holds scanned underground mine maps and answers requests for a named mine or an area.

Alameda County Concord Richmond Antioch San Ramon Walnut Creek Danville Pittsburg Oakley Brentwood N 20 miles
Contra Costa County: the boundary from the Census Bureau, and one dot for each old mine or hole on record inside it. The purple dots come off the old survey maps and the darkest of those are shafts and tunnels; the red, green and orange ones are mine records. The small open circles with a name are the towns and the pale shapes around the edge are the neighbouring counties, both from the Census Bureau. Hover a dot for its name.
California mine map and abandoned mine records
Named workings recorded in Contra Costa County (183 shown, 111 unnamed on the map)

Rows taken off the old survey maps open the USGS record of what sits at that spot, because no single feature on those maps has a page of its own. Rows from the mine records open their own USGS page.

Disclaimer: The mine information here is for general information only. Old mine records can be incomplete, outdated or wrong, and finding nothing here does not mean there is nothing there. Check with the mine map office named here before you rely on it, and have a qualified engineer look at any ground you are worried about. PublicRecordCenter.com assumes no responsibility or liability for any errors, omissions, or consequences arising from the use of this information.

Contra Costa certificates and court-record requests

Match the certificate to its custodian

The Contra Costa Health vital-record office handles births and deaths in the current and previous calendar year. Older events go to the Clerk-Recorder. This distinction matters before choosing a counter or mailing an application. The Clerk birth-certificate table lists $38 for a certified copy in 2026. The same Health instructions lists $30 for a death certificate, while the Clerk marriage table lists $23 for a marriage copy. These charges concern copies of completed records, not a new marriage-license application.

Read the records-service notice before visiting

The Superior Court file-order notice places noncriminal records at Wakefield Taylor Courthouse, 725 Court Street, Room 103, effective January 12, 2026. It also says in-person records requests remain unavailable until further notice. The address change does not establish a walk-in copy service. Those instructions distinguish noncriminal requests from criminal files and report that online minutes, case documents and orders are unavailable. Use the stated request method for the file type; a search result alone is not the document.

Keep recorded instruments separate from assessed value

The Clerk-Recorder holds land instruments. The Assessor maintains assessment information, and the Registrar of Voters handles election records. Supply a recording reference for a deed request or a parcel identifier for an assessment question.

For a court visit, use the Pittsburg courthouse location page to distinguish building hours from clerk-window and telephone hours. The California record guide gives statewide routes beyond the county offices.

Where to go

Contra Costa County offices that hold the records

Each office below was read on its own site. A field the office does not publish is left out rather than filled in from a directory.

Clerk-Recorder

Recorded instruments and Clerk certificate services.

Address
555 Escobar Street, Martinez, CA 94553
Phone
925-335-7900

Office page: contracostavote.gov

Contra Costa Health Vital Registration

Current and previous calendar-year births and deaths.

Address
10 Douglas Drive, Suite 220, Martinez, CA 94553
Phone
925-313-1125
Hours
Monday to Friday 8 a.m. to 4 p.m

Office page: cchealth.org

Superior Court noncriminal records

Noncriminal file-copy orders; use published request method.

Address
725 Court Street, Room 103, Martinez, CA 94553

Office page: contracosta.courts.ca.gov

Richard E. Arnason Justice Center

Pittsburg court proceedings and clerk services.

Address
1000 Center Drive, Pittsburg, CA 94565
Phone
925-608-1000
Hours
Filing windows weekdays 8 a.m. to 4 p.m.; phones until 3 p.m

Office page: contracosta.courts.ca.gov

Registrar of Voters

Voter and election records.

Address
555 Escobar Street, Martinez, CA 94553
Phone
925-335-7800

Office page: contracostavote.gov

Straight answers

Contra Costa County public-records FAQs

Open only the answer you need.

Where can I find mugshots or booking photos in Contra Costa County, California?

Booking photos are kept by the agency that made the arrest, such as the Contra Costa County Office of the Sheriff or a city police department in Contra Costa County. Ask that agency for its record. Under Penal Code 13665, a police department or sheriff's office may not share on social media the booking photos of a person arrested on suspicion of a nonviolent crime unless an exception applies, and must remove booking photos it shared on social media within 14 days unless an exception still applies.

How do I get a criminal background check in Contra Costa County, California?

The California criminal history record comes from the California Department of Justice. Record Review of your own record only: submit fingerprint images through Live Scan and follow the DOJ Record Review instructions. Fee: $25 processing fee to the DOJ, plus the Live Scan agency's fingerprint fee; a fee waiver may be available.

How can I look up sex offenders in Contra Costa County, California?

Search the California Megan's Law Website (Department of Justice), or every state at once on the National Sex Offender Public Website run by the U.S. Department of Justice.

How do I register to vote in Contra Costa County, California?

Register with the county elections official (county elections office or registrar of voters) or through the California Secretary of State. You can also register online with the state online registration. The deadline to register is 15 days before Election Day; after that, same day (conditional) registration and voting is available at the county elections office.

How do I look up property records in Contra Costa County, California?

Deeds and other recorded land documents in Contra Costa County are kept by the Contra Costa County Recorder. Property values are set by the County Assessor, and tax bills come from the County Tax Collector. Source: official state page.

How do I get a birth or death certificate in Contra Costa County, California?

Certified birth and death certificates for California come from the California Department of Public Health, Vital Records (CDPH VR). Copies may be obtained in person at the county office (County Registrar or Recorder) where the birth was registered, for events in that county. By mail with form VS 111 to California Department of Public Health, Vital Records, MS 5103, P.O. Box 997410, Sacramento, CA 95899-7410, or in person at the county office where the event was registered; since July 1, 2026 CDPH VR no longer accepts applications sent through online third party vendors. Fee: $31 for each certified copy of a birth record.

How do I find business license records in Contra Costa County, California?

Business entity filings are searched with the California Secretary of State (bizfile Online). Most California cities and counties require a business license, permits or registration to do business within their limits.

Does Contra Costa Health keep every year of birth certificates?

Its service description covers the current and previous calendar year. Request older local certificates from the Clerk-Recorder.

What is the Contra Costa certified birth-copy fee for 2026?

The dated Clerk fee table lists $38 per certified copy. Optional payment or delivery charges are separate.

Is Contra Costa marriage certification priced like a new license?

No. The marriage-copy schedule lists $23 for a certified copy of an existing record; licensing is a separate service.

Can I walk into the relocated Contra Costa records office for a file?

The records notice says in-person requests are unavailable until further notice. Follow its current ordering instructions even though a new office address is listed.

Does the Contra Costa noncriminal order route also handle criminal files?

The file-order page distinguishes those requests. Select the criminal-record route instead of submitting a criminal request as a noncriminal order.

Can I use the Contra Costa online case result as a court order?

The Court notice reports unavailable online minutes, documents and orders. Obtain the needed document through the clerk rather than treating a case listing as the signed order.

Which Contra Costa office answers a parcel valuation question?

Use the Assessor for assessment information. The Clerk-Recorder is the separate custodian for recorded deeds and liens.

When do Pittsburg courthouse clerk windows close?

The courthouse instructions state 4 p.m. for filing windows and 3 p.m. for answered telephone calls. Building access has a different closing time.