Place List: Contra Costa County, California
Place List: Contra Costa County, California, sorted alphabetically (number of total localities in parentheses):
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1. Antioch, Contra Costa County, California  2. Brentwood, Contra Costa County, California (1) |
3. Contra Costa County, California 4. El Cerrito, Contra Costa County, California |
5. Oakland, Contra Costa County, California |