Overview of St. Helena, California
St. Helena ) is a city in Napa County, California, United States. It is part of the Napa, California Metropolitan Statistical Area. Its area code 707. Its zip code is 94574. It is in the Pacific time zone. The population was 5,950 at the 2000 census.Ellen White, co-founder of the Seventh-day Adventist Church, had a home called "Elmshaven" near St. Helena, beginning in 1900. She died there in 1915 and the site is now a National Historic Landmark.The St. Helena AVA is in the region.