Want to find and bid on homes in Contra Costa County, CA? Search 17 Foreclosure Listings in Contra Costa County CA, with data on unpaid balances and auction dates.Find Bank Foreclosures and premium information on The sale will be conducted on line at GovEase. Com as a public auction to the highest bidder for not less than the minimum bid as shown on this notice. A searchable summary of information contained in submissions to the Attorney General's Office regarding residential foreclosures sales made to eligible bidders. 19 Foreclosures in Contra Costa County, California.