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United States > California > Contra Costa County

Martinez

Historical Facts

Contra Costa County began in 1850 as one of the original counties in the new state of California. Located in the East Bay area, San Pablo Bay and Suisun Bay partially surround the land area of the county and have contributed to the economy since the gold rush. 

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

Places/Localities

Populated Places

Antioch
Brentwood
Clayton
Concord
Danville
El Cerrito 
Hercules
Lafayette
Martinez  Moraga
Oakley  Orinda
Pinole  Pittsburg  Pleasant Hill
Richmond
San Pablo  San Ramon
Walnut Creek

Neighboring Counties

• Alameda
• Sacramento
• San Joaquin
• Solano

Resources

Archives and and Libraries

Bible Records

Biography

Cemeteries

• Oakmont Memorial Park, Lafayette BillionGraves
• Rolling Hills Memorial Park, El Sobrante BillionGraves

Census

Church History and Records

Court Records

Crime and Criminals

Directories

Ethnic, Political, or Religious Groups

Germans

Gazetteers

Genealogy

History

Land and Property

Maps

Migration

Military History and Records

Naturalization and Citizenship

Newspapers

Obituaries

Periodicals

Probate Records

Repositories

Archives, Libraries and Museums

County Courthouse

Family History Centers

• Introduction to LDS Family History Centers
• Antioch California Family History Center (Brentwood)
• Concord California Family History Center
  
• Danville California Family History Center

Societies

Taxation

Vital Records

Birth

Marriage

Divorce

Death

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.

Voting Registers

Web Sites

• Contra Costa County CAGenWeb
• Linkpendium
• USGenWeb Archives
• USGenWeb Archives backup site
• FamilySearch Family History Library Catalog

A wiki article describing this collection is found at:

• California, Genealogical Collections at the California Genealogical Society (FamilySearch Historical Records)

References