Contra Costa County Parcel Viewer

Search for Contra Costa County CA parcel information. A parcel search can provide information on parcel boundaries, property lines, parcel lines, parcel divisions, unclaimed parcels, property taxes, property appraisals, parcel appraisal values, public parcels, genealogical research, property owners, and property sales.


The Assessor Office works at the county or local level to determine the value of the area's taxable property. As part of this job, Assessors conduct property appraisals and may assess the property taxes for every parcel. Assessor Offices maintain information on these parcels, including parcel maps, boundary lines, and parcel divisions. These parcel viewers may also provide information on appraisal values, zoning, and property tax assessments. Parcel viewers can also be used to locate local unclaimed parcels, public property, and look up property owner information. The Assessor Office may provide an online parcel viewer to look up parcel information.

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


The Clerk Office maintains public records for a county or local government, including vital documents and property-related records. Clerks keep documents on every parcel in their jurisdiction, which can include parcel viewers that show parcel maps, boundary lines, and divisions between parcels. These parcel viewers may also provide information on property appraisal values, zoning boundaries, and property tax assessments, and they can be used to locate unclaimed parcels, public property, and look up property owner information. Parcel viewer information may be available through the Clerk Office website.

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


The Town or City Hall provides municipal services for their town or city, including maintaining property-related documents. These records can include parcel viewers, which contain information on every parcel in the town or city. These parcel maps can include information on parcel boundaries, unclaimed parcels, public property, and parcel divisions. Town and City Halls may also have records on property appraisals, zoning boundaries, current and former property owners, and property taxes, which may be presented in the parcel viewer. This information is often available to the public on the Town or City Hall website.

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


An Archive preserves records with historical significance for a local area, which can include parcel records. Some Archives may provide parcel information in the form of a parcel viewer, which can be used to look up historic parcel boundaries, ownership information for any parcel in the area, and parcel divisions over time. These records may also list historical property tax rates or property value assessments, including sales, as well as changes to parcel maps over time. These records can be useful for conducting genealogical research. Archives may provide online access to their parcel viewers.

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


The Recorder of Deeds keeps real estate ownership documents in order to ensure the accuracy of property, land, and parcel records. Recorders of Deeds have records on every parcel under their authority, and they may provide a parcel viewer to look up this information. Parcel viewers provide information on parcel boundaries, property owners, unclaimed parcels, and parcel divisions, and this information may be presented in a parcel map. Recorders of Deeds may also have information on property appraisals, property taxes, and zoning boundaries. They may provide online access to parcel information on the Recorder of Deeds website.

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