Jefferson College, in Washington, Mississippi, was founded as an all-male college but operated primarily as a college preparatory school and later military boarding school during most of its history. Named in honor of Thomas Jefferson, the college was chartered in 1802, but did not begin operation until 1811. Due to declining enrollment and financial difficulties, the facility closed in 1964. The historic campus was listed on the National Register of Historic Places in 1970, and was designated a Mississippi Landmark in 1985. The site is operated as an historic museum and park.