The Silverado Resort and Spa is a 1,200-acre golf, tennis, and spa resort in Napa County, California, United States. The venue is named after the Silverado Mine, a quicksilver mine near Mount Saint Helena. The resort is the fifth largest employer in Napa County. The United States Census Bureau has designated the area surrounding the Silverado Resort as a separate census-designated place for statistical purposes. The population of the CDP was 1,095 at the 2010 census.