The H600 Project Genealogy DB
Place List: Contra Costa Co, California, USA
Place List: Contra Costa Co, California, USA, sorted alphabetically (number of total localities in parentheses):
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1. , Contra Costa Co, California, USA  2. Antioch, Contra Costa Co, California, USA 3. Brentwood, Contra Costa Co, California, USA 4. Clyde, Contra Costa Co, California, USA |
5. Concord, Contra Costa Co, California, USA 6. Martinez, Contra Costa Co, California, USA 7. Oakley, Contra Costa Co, California, USA 8. Pittsburg, Contra Costa Co, California, USA |
9. Richmond, Contra Costa Co, California, USA 10. San Pedro, Contra Costa Co, California, USA 11. Walnut Creek, Contra Costa Co, California, USA |