Buena Vista is an unincorporated community located in Amador County, California. It is part of the larger Sierra Nevada region, known for its scenic beauty, historic significance, and proximity to the California Gold Country. Amador County itself is rich in history, particularly from the California Gold Rush era, and is also a notable wine-producing area, part of the Sierra Foothills AVA (American Viticultural Area). The population was 542 at the 2020 census.