Contra Costa County GIS Data (California)

Search for Contra Costa County, CA GIS data. A GIS data search can provide information on GIS maps, property lines, county lines, city lines, public property, elevations, flood zones, school boundaries, earthquake zones, property appraisal values, erosion, water pollutants, topography, soil composition, sewers, public utilities, building hazards, population information, demographic information, place names, public property, parks, campgrounds, trails, trail maps, historic maps, historic GIS maps, town maps, county maps, city maps, and neighborhood boundaries.


An Assessor Office is responsible for appraising the taxable property in an area in order to calculate property taxes in Contra Costa County, California. As part of this job, Contra Costa County Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) data. These Contra Costa County GIS maps typically include property divisions, plots, buildings, property appraisal values, and property taxes. They may also include public property, parks, roads, place names, bodies of water, and other local geographical information, as well as flood zones, county zone lines, and school boundaries. These maps can be useful for a number of reasons, including buying and selling property. Assessors may provide online access to their Contra Costa County GIS data on their websites.

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


A Clerk Office maintains public records for a county or local government, including GIS data in the form of maps. These GIS maps provide detailed information such as property boundaries, roads, public property, parks, and in some cases, population and demographic information. GIS data can also show Contra Costa County property value assessments, property taxes, flood zones, zoning boundaries, and earthquake zones, as well as place names, bodies of water, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations. Contra Costa County GIS data is often accessible 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


A Town or City Hall provides municipal services for their town or city, including keeping vital records and maintaining documents on their jurisdiction such as maps with GIS data in Contra Costa County, California. These GIS maps typically include property boundaries, real estate appraisal values, Contra Costa County property tax assessments, public property, and unclaimed parcels. The maps may also show place names, Contra Costa County zoning boundaries, bodies of water, and flood zones, as well as population and demographic information. Some Town and City Halls also maintain historical maps of their area. These maps are often available 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


A Building Department creates and enforces building codes and zoning regulations in order to ensure the construction of safe buildings in Contra Costa County, California. As part of that job, Building Departments maintain GIS data that can include Contra Costa County GIS maps on the topography, elevation, soil composition, and flood zones for the local area. This information can be important for adhering to building codes and meeting zoning rules. These GIS maps may also show Contra Costa County parcels, lots, subdivisions, and tracts of land, as well as sewers, public utilities, and other building hazards. GIS data may be available on the Building Department website.

Brentwood Permits Brentwood CA 104 Oak Street 94513 925-516-5406

Brentwood Planning Department Brentwood CA 118 Oak Street 94513 925-516-5405

Clayton Zoning Clayton CA 6000 Heritage Trl 94517 925-673-7340

Concord Permits Concord CA 1950 Parkside Drive 94519 925-671-3075

Contra Costa Building Department Martinez CA 651 Pine Street 94553 925-646-4108

Contra Costa Planning and Zoning Department Martinez CA 651 Pine Street 94553 925-335-1381

Danville Planning Department Danville CA 510 La Gonda Way 94526 925-314-3310

El Cerrito Planning Department El Cerrito CA 10890 San Pablo Avenue 94530 510-215-4330

Martinez Zoning Martinez CA 525 Henrietta Street 94553 925-372-3515

Moraga Planning Department Moraga CA 329 Rheem Boulevard 94556 925-888-7040

Orinda Planning Department Orinda CA 14 Altarinda Road 94563 925-253-4211

Pinole Building Department Pinole CA 2131 Pear Street 94564 510-724-8914

Pinole Planning Department Pinole CA 2131 Pear Street 94564 510-724-9014

Richmond Building Department Richmond CA 450 Civic Center Plaza 94804 510-620-6868

Richmond Planning and Zoning Department Richmond CA 1401 Marina Way South 94804 510-620-6706

San Pablo Zoning San Pablo CA 13831 San Pablo Avenue 94806 510-215-3030

San Ramon Building Department San Ramon CA 2401 Crow Canyon Road 94583 925-973-2582

Walnut Creek Zoning Walnut Creek CA 1666 North Main Street 94596 925-256-3558


An Auditor Office provides oversight for government agencies, including evaluating the performance of government offices and their compliance with laws, rules, and regulations in Contra Costa County, California. Auditors also investigate corruption and fraudulent activities. Auditor Offices maintain a number of records related to their local area, which can include GIS data that shows Contra Costa County property boundaries, city or county lines, flood zones, earthquake zones, and property taxes. These Contra Costa County maps may also provide place names, bodies of water, and other geographic information. Auditors may provide online access to their GIS maps.

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


A Recorder of Deeds keeps real estate documents to ensure the accuracy of property and land records in Contra Costa County, California. In addition to filing deeds that provide information on property sales and transfers, Recorders of Deeds also have detailed county and local maps, including Contra Costa County GIS data. These maps can include property lines, building information, unclaimed parcels, property value assessments, and property tax information. They may also show Contra Costa County place names, flood zones, zoning boundaries, neighborhood lines, bodies of water, and other geographic information. The Recorder of Deeds may provide access to GIS data on its website.

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