The main branch of the Contra Costa County District Attorney's Office is located at:
900 Ward StreetMartinez, CA 94553Phone: (925) 957 2200
Directions
The Contra Costa County District Attorney's Office, Central Eastern Operation branch is located at:
10 Douglas, Suite 130Martinez, CA 94553Phone: (925) 957-8540
The Contra Costa County District Attorney's Office, Western Operation branch is located at:
100 37th Street, Room 220Richmond, CA 94805Phone: (510) 231-1800