Clarksville, California

Clarksville (Tong Ranch) is an unincorporated community in El Dorado County, California. It is located 14 mi west-southwest of Placerville, at an elevation of 676 feet (206 m).

Clarksville was established during the California gold rush and at one point had over a thousand residents and several businesses. By 1931 only twenty residents remained. Little remains today, but the Clarksville Heritage Society preserves the town's history.

A post office operated at Clarksville from 1855 to 1924 and from 1927 to 1934.