Contra Costa County, California Genealogy

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== References  ==
== References  ==

Revision as of 06:50, 7 January 2011

United States > California > Contra Costa County


County Courthouse

Quick Facts

Wikipedia has more about this subject: Contra Costa County, California

Parent County

18 February 1850: Contra Costa County was created as an original county. County seat: Martinez [1]

Boundary Changes

Record Loss


Populated Places

Neighboring Counties


Archives and and Libraries



Church History and Records

Court Records


Land and Property


Military History and Records


Probate Records


Vital Records

Contra Costa County maintains records of death certificates from 1905 to present. You can obtain an informational copy for a fee by mailing the Application for Death Record from the county clerk's website ( with your payment. As with other counties, you only need to get the form notarized if you want a certified copy. Informational copies do not need a notary.

Societies, Libraries and Museums

Web Sites


  1. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).