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Contra Costa County - Area Map
About Contra Costa County

The County of Contra Costa, California (the "County") was incorporated in 1850 as one of the original 27 counties of the State of California (the "State"), with the City of Martinez as the County Seat. It is one of the nine counties in the San Francisco-Oakland Bay Area. The County is the ninth most populous county in California, with its population reaching approximately 1,051,677 as of January 1, 2008. 

                   Current County Event Calendar
News Flash
2010 Census Everybody Counts Poster Contest
Contra Costa County is launching a countywide poster contest for all K-12 students in Contra Costa schools to raise awareness of the importance of the census. [Additional info...]
Nominate "People Who Make a Difference" Combating Alcohol and Other Drugs"
The Alcohol and Other Drugs Advisory Board seeks nominations for the 2010 "People Who Make a Difference" Awards.Nominations are due April 2. [Additional info...]
New Members Needed for CCC Advisory Council on Aging
New members are being sought for member-at-large 0penings. If you are interested in learning more [Additional info...]
Everybody Counts....2010 Census
In 2010, the U.S. Census Bureau will define who we are as a nation. Be counted, complete the Census Form.The form is short, your answers are protected, and many benefits rely upon an accurate count. Help your community receive the funds it requires. [Additional info...]
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