Radcliff is a Hardin county town on the southwest edge of Fort Knox, north of Elizabethtown. It was established about 1919 and is said to be named for a Major Radcliffe from what was then Camp Knox. (The name of the town was originally spelled with the final “e.”) Radcliff was incorporated in 1956. The Radcliff post office opened in 1962. The population in 2010 was 21,688.