Chesapeake is an independent city located in the South Hampton Roads portion of the Hampton Roads metropolitan area of Virginia in the United States. One of the Seven Cities of Hampton Roads, Chesapeake was formed in 1963 by a political consolidation of the City of South Norfolk with the former Norfolk County, which dated to 1691. Chesapeake is the second-largest city by land area in the Commonwealth of Virginia. Chesapeake is a diverse city with few urban areas as well as many square miles of protected farmland, forests, and wetlands, including a substantial portion of the Great Dismal Swamp. Extending all the way from the rural border with North Carolina to the harbor area of Hampton Roads adjacent to the cities of Norfolk and Portsmouth, Chesapeake is located on the Atlantic Intracoastal Waterway and has miles of waterfront industrial, commercial and residential property. It is currently the third largest city in Virginia in terms of population. In 2006, its population was estimated to be 220,560, a 10.7% increase since its 2000 census count . Its median household income in 2007 was $63,016, the highest in South Hampton Roads .