San Andreas is an unincorporated census-designated place and the county seat of Calaveras County, California. The population was 2,783 at the 2010 census, up from 2,615 at the 2000 census. Like most towns in the region, it was founded during the California Gold Rush. The town is located on State Route 49 and is registered as California Historical Landmark #252.
Main Street
Old Calaveras County Courthouse, built 1867, served in that role for 100 years. Afterwards, it was turned into the Calaveras County Museum, and was listed on the National Register of Historic Places (NRHP).
Calaveras County, California
Calaveras County, officially the County of Calaveras, is a county in both the Gold Country and High Sierra regions of the U.S. state of California. As of the 2020 census, the population was 45,292. The county seat is San Andreas. Angels Camp is the county's only incorporated city. Calaveras is Spanish for "skulls"; the county was reportedly named for the remains of Native Americans discovered by the Spanish explorer Captain Gabriel Moraga.
Calaveras County view
California Caverns – Calaveras County