Knoxville, California
Knoxville is an unincorporated community in Napa County, California. It lies at an elevation of 1322 feet. Knoxville is located north-northeast of Saint Helena.
The Knoxville post office opened in 1863, moved in 1904 and 1907, and closed permanently in 1912. The name commemorates Ranar B. Knox, owner of a local mine and first post master.
