Volcano (formerly Soldier's Gulch and The Volcano) is a census-designated place in Amador County, California. It lies at an elevation of 2070 feet (631 m). The population was 115 at the 2010 census. It is located at 38°26′35″N 120°37′51″W / 38.44306°N 120.63083°W / 38.44306; -120.63083, just north of Pine Grove. The town is registered as a California Historical Landmark. The community is in ZIP code 95689 and area code 209.