According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.0%) is water. It is the only West Virginia county where the Blue Ridge Mountains and Shenandoah River can be found, as referenced in West Virginia's state song, "Take Me Home, Country Roads" by John Denver. The lowest point in the state of West Virginia is located on the Potomac River (just east of Harpers Ferry) in Jefferson County, where it flows out of West Virginia and into Virginia.
According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.0%) is water. It is the only West Virginia county where the Blue Ridge Mountains and Shenandoah River can be found, as referenced in West Virginia's state song, "Take Me Home, Country Roads" by John Denver. The lowest point in the state of West Virginia is located on the Potomac River (just east of Harpers Ferry) in Jefferson County, where it flows out of West Virginia and into Virginia.