Volcano (formerly Soldier's Gulch and The Volcano) is a census-designated place in Amador County, California. It lies at an elevation of 2070 ft. The population was 104 at the 2020 census. It is located at 38.44306°N, -120.63083°W, 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.