The Contra Costa County Recorder has control over recording, filing and the preservation of documents and indicies pertaining to land title within Contra Costa County. These duties also include those pertaining to liens or encumbrances on land. Once these documents are recorded, the County Recorder makes this information available for examination by interested parties and issues copies upon request.
Contra Costa County is one of the original counties of California, created in 1850
Within the county are 19 incorporated cities and seven unincorporated communities and rural areas.
The incorporated cities are Antioch, Brentwood, Clayton, Concord, Danville, El Cerrito, Hercules, Lafayette, Martinez, Moraga, Oakley, Orinda, Pinole, Pittsburg, Pleasant Hill, Richmond, San Pablo, San Ramon, amd Walnut Creek.
Martinez is the county seat for Contra Costa County.