Harpers Ferry, population 286 at the 2010 census, is a historic town in Jefferson County, West Virginia, United States, in the lower Shenandoah Valley. (Until 1863, it was in Virginia.) It is situated at the confluence of the Potomac and Shenandoah rivers, where the U.S. states of Maryland, Virginia, and West Virginia meet. It is the easternmost town in West Virginia and during the Civil War was the northernmost point of Confederate-controlled territory. (Wheeling, though further north, was Unionist.) It has been called, speaking of the Civil War, "the best strategic point in the whole South".