North Dakota (USA) vs. South Dakota (USA): Comparea Area Comparison

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: 196,350 km² US Census

Population: 844,877 (July 2013) US Census

South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux Native American tribes. South Dakota is the 17th most extensive, but the 5th least populous and the 5th least densely populated of the 50 United States. Wikipedia