Contra Costa County is in San Francisco Bay Area California. Of the 58 counties in the El Dorado State, 514,601-acre Contra Costa County ranks 50th by size. The total value of about 1,000 acres of recreational land recently listed for sale in Contra Costa County, California, was $13 million. The average price of recreational property for sale in Contra Costa County was $1 million. Browse all recreational property for sale in California to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development.