North America is 137 times larger than North Dakota (USA).
Area: 178,711 km2 US Census
Population: 723,393 (July 2013) US Census
North Dakota is the 39th state of the United States, having been admitted to the union on November 2, 1889. Wikipedia
Area: 24,490,000 km2 DESA
Population: 542,056,000 (2012) DESA
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It can also be considered a northern subcontinent of the Americas. Wikipedia