Contra Costa County Records

Search for Contra Costa County CA county records. County records include birth certificates, death certificates, marriage records, marriage licenses, divorce records, property tax records, property ownership, historical records, genealogical research, property titles, property deeds, county maps, county taxes, county zones, school boundaries, and more.


Clerk Offices in Contra Costa County California are responsible for maintaining important records for a county or local area, including multiple types of Contra Costa County records. These include vital records such as birth certificates, marriage records, divorce records, and death certificates, which can be useful for proving identity or for conducting genealogical research in Contra Costa County. They may also keep documents related to Contra Costa County property ownership and property taxes, including title deeds, tax assessments, property appraisals, and property sale records. The Contra Costa County Clerk is one of the best places to find all types of county records, which may be available online.

Antioch City Clerk Antioch CA 200 H Street 94509 925-779-7007

Brentwood Clerk Brentwood CA 708 3rd Street 94513 925-516-5440

Contra Costa Clerk Richmond CA 100 South 37th Street 94804 510-374-3241

Contra Costa County Clerk Martinez CA 555 Escobar Street 94553 925-335-7800

Hercules City Clerk Hercules CA 111 Civic Drive 94547 510-799-8215

Oakley City Clerk Oakley CA 3231 Main Street 94561 925-625-7000

Pinole City Clerk Pinole CA 2131 Pear St 94564 510-724-8928

Pleasant Hill City Clerk Pleasant Hill CA 100 Gregory Lane 94523 925-671-5237

Richmond City Clerk Richmond CA 450 Civic Center Plaza 94804 510-620-6513

San Pablo City Clerk San Pablo CA 1 Alvarado Street 94806 510-215-3005


Town and City Halls in Contra Costa County California are responsible for providing municipal services for their locality. As part of this job, they may store important county records, including Contra Costa County vital records such as birth certificates, marriage license records, divorce records, and death certificates. These can be used as proof of identity, in applications for government services, or for performing genealogical research. The Town or City Hall in Contra Costa County may also keep documents on property ownership, property taxes and tax assessments, and maps for their jurisdiction that include zones, property boundaries, and school boundaries. Town and City Halls often make county records available online.

Antioch City Hall Antioch CA 200 H Street 94509 925-779-7011

Clayton City Hall Clayton CA 6000 Heritage Trail 94517 925-673-7300

Concord City Hall Concord CA 1950 Parkside Drive 94519 925-671-3425

El Cerrito City Hall El Cerrito CA 10890 San Pablo Ave 94530 510-215-4300

Hercules City Hall Hercules CA 111 Civic Drive 94547 510-799-8200

Lafayette City Hall Lafayette CA 3675 Mount Diablo Boulevard 94549 925-284-1968

Martinez City Hall Martinez CA 525 Henrietta St 94553 925-372-3500

Oakley City Hall Oakley CA 3231 Main Street 94561 925-625-7017

Orinda City Hall Orinda CA 22 Orinda Way 94563 925-253-4220

Pinole City Hall Pinole CA 2131 Pear Street 94564 510-724-8928

Pleasant Hill City Hall Pleasant Hill CA 100 Gregory Ln 94523 925-671-5270

Richmond City Hall Richmond CA 450 Civic Center Plaza 94804 510-620-6513

San Pablo City Hall San Pablo CA 13831 San Pablo Avenue 94806 510-215-3000

Walnut Creek City Hall Walnut Creek CA 1666 North Main Street 94596 925-943-5800


Historical Societies in Contra Costa County California are usually organized around a particular area, a group of people, or a historical event, and they preserve documents that have historic value. Contra Costa County Historical Societies may maintain a range of documents on individuals from that area, including Contra Costa County vital records such as birth and death certificates, marriage announcements, and other records that can help with Contra Costa County genealogical research. They may also have photographs, historical maps, historical laws, and other records for their location and the people who lived there. Historical Societies may provide online access to their Contra Costa County public records.

Antioch Historical Society Antioch CA 1500 West 4th Street 94509 925-757-1326

Clayton California Historical Society Clayton CA 6101 Main Street 94517 925-672-0240

Concord California Historical Society Concord CA 1601 Sutter Street 94520 925-827-3380

Contra Costa County Historical Society Martinez CA 610 Main Street 94553 925-229-1042

East Contra Costa Historical Society Brentwood CA Sellers Avenue 94513 925-634-8651

Lafayette Historical Society Lafayette CA 3491 Mount Diablo Boulevard 94549 925-283-1848

Martinez Historical Society Martinez CA 1005 Escobar Street 94553 925-228-8160

Orinda Historical Society Orinda CA 24 Orinda Way 94563 925-254-1353

Pittsburg Historical Society Pittsburg CA 515 Railroad Avenue 94565 925-439-7501

Walnut Creek California Historical Society Walnut Creek CA 2660 Ygnacio Valley Road 94598 925-935-7871


Treasurer and Tax Collector Offices in Contra Costa County California are responsible for collecting local taxes and disbursing the funds. This can include Contra Costa County property taxes, business taxes, and other county or local taxes. Contra Costa County Treasurer and Tax Collectors maintain a number of property-related county records, including Contra Costa County property tax assessments, property appraisals, property ownership records, and any tax liens or foreclosures. They may also maintain Contra Costa County public records on property transfers and sales, including titles and deeds, which list the former and current owners as well as information on the property itself. Treasurer and Tax Collector Offices may provide online access to their county records.

Concord City Treasurer Concord CA 1950 Parkside Drive 94519 925-671-3183

Contra Costa County Treasurer-Tax Collector's Office Martinez CA 625 Court Street 94553 925-957-5280

Pinole City Treasurer Pinole CA 2131 Pear Street 94564 510-724-9009


Assessor Offices in Contra Costa County California determine the appraisal value of the taxable property within a county or local jurisdiction, which is used to assess the property taxes owed by Contra Costa County residents. Contra Costa County Assessors also keep a number of property-related documents, including records on property tax assessments, property appraisals, tax liens, foreclosures, and property tax payments. These Contra Costa County public records include information about current and former owners of a property, the property's size and location, zones and use regulations, and transfers of the property ownership. Assessors may make county records available through their website.

Contra Costa County Assessor's Office Martinez CA 2530 Arnold Drive 94553 925-313-7500


Auditor Offices in Contra Costa County California are responsible for providing oversight for government agencies. As part of this job, Auditors evaluate the performance of government agencies and their compliance with laws, rules, and regulations, and they also investigate corruption and fraudulent activities. Contra Costa County Auditors maintain a number of records related to their function, including audit reports, government evaluation reports, corruption reports, and fraud investigations. They often produce annual or semi-annual reports on a number of agencies within the county government. Auditor Offices typically make Contra Costa County public records available on their website.

Contra Costa County Auditor Martinez CA 625 Court Street 94553 925-646-2181


Archives in Contra Costa County California preserve historically significant documents, which can include a number of county records, such as historical birth certificates and death certificates, as well as marriage and divorce records which can be useful when performing Contra Costa County genealogical research. Contra Costa County Archives may also contain photographs, historical maps, personal documents, and other historical records about a specific location and the people who lived there. They may also hold historic newspapers that contain Contra Costa County public records. Some Archives keep documents that date back to the seventeenth century, and they may provide online access to their records.

Martinez Divorce Records Archive Martinez CA 1111 Ward Street 94553 925-646-2967


Recorders of Deeds in Contra Costa County California keep a range of real estate ownership documents for a county or local government as part of their job to ensure the accuracy of property, land, and Contra Costa County property tax records. The Contra Costa County Recorder's Office has county records on property ownership, transfers of property including deeds and titles, and property tax records such as property appraisals, Contra Costa County tax assessments, and tax liens or foreclosures. These documents contain information about the previous and current property owners, descriptions of the property, and Contra Costa County property sales. Recorders of Deeds may provide online access to their county records.

The County Clerk Recorder’s Office Martinez CA 555 Escobar Street 94553 925-335-7900