Madison County is a county located in the Commonwealth of Virginia. As of the 2010 census, the population was 13,308. Its county seat is Madison.HistoryMadison County was established in December 1792, created from Culpeper County. The county is named for the Madison family that owned land along the Rapidan River. President James Madison is a descendant of that family.GeographyAccording to the U.S. Census Bureau, the county has a total area of 322sqmi, of which 321sqmi is land and 1.2sqmi (0.4%) is water.A significant portion of western Madison County is within Shenandoah National Park, including Old Rag, one of its most popular tourist destinations, and Rapidan Camp, the presidential retreat built by Herbert Hoover.Adjacent counties Page County, Virginia – northwest Rappahannock County, Virginia – north Culpeper County, Virginia – east Orange County, Virginia – southeast Greene County, Virginia – southwest