Welcome to CCMap! The Contra Costa
County GIS web site is dedicated to bringing maps and spatial information to the
public, county staff and our partner agencies. Here you can find information about where we
live, work and play.
Geographic Information Systems (GIS) are used to
link maps together with information to provide a rich environment to
discover our world. View aerial imagery for any area in the
County, check your zoning, find assessed property values around your home,
check your lot size and much more!
Through this portal you will find a wide variety of information about
properties in Contra Costa County, such as zoning, aerial photos, property
information, flood plain and jurisdictional information.
Maps that have been created by various County departments.
The County is involved in many different activities which involve map creation.
register to use data download section. Register here to receive update
notifications and newsletters.
We would like to hear from you! Your feedback allows us to better assist you and also helps in the
continuing effort to improve our web site.
Upon registering you can download a variety of GIS datasets. Please note that GIS software is required to utilize these files.