Saratoga is a city in Santa Clara County, California, United States. Located in Silicon Valley, in the southern Bay Area, it had a population of 31,051 at the 2020 census. The U.S. Census Bureau estimated Saratoga's population at 30,418 as of July 1, 2025.. Saratoga is known for its wineries, restaurants, and historic landmarks like Villa Montalvo, Mountain Winery, and Hakone Gardens.