North Dakota North Dakota North Dakota () is a U.S. state in the midwestern and northern regions of the United States. It is the nineteenth largest in area, the fourth smallest by population, and the fourth most sparsely populated of the 50 states. North Dakota was admitted to the Union on November 2, 1889, along with its neighboring state, South Dakota. Its capital is Bismarck, and its largest city is Fargo. In the 21st century, North Dakota's natural resources have played a major role in its economic performance, particularly with the oil extraction from the Bakken formation, which lies beneath the northwestern
U.S. Route 81 in North Dakota of Grafton before joining North Dakota Highway 5 (ND 5) near Cavalier. It rejoins I-29 and continues to the US–Canada border at Pembina. The original route of US 81 survives as ND 127 and 'County Road 81' in Richland, Cass, Traill, and Grand Forks counties. Exit numbers are I-29 exit numbers. U.S. Route 81 in North Dakota U.S. Route 81 (US 81) is a part of the U.S. Highway System that travels from Fort Worth, Texas, to the Pembina–Emerson Border Crossing near Pembina. In the state of North Dakota, US 81 extends from the South Dakota border north to the