Sonora is the county seat of Tuolumne County, California. As of the 2010 census, the city population was 4,903, up from 4,423 at the 2000 census. Sonora is the only incorporated community in Tuolumne County.
Sonora is located at 37°59′04″N 120°22′54″W / 37.984361°N 120.381767°W / 37.984361; -120.381767, around the intersection of California State Highways 49 and 108 The altitude is 1,825 feet...