North Sioux City is a city in Union County , South Dakota , United States . The population was 2,530 at the 2010 census . It is part of the Sioux City , IA – NE –SD Metropolitan Statistical Area .
History The southern tip of this land between the Missouri River from the west and south and the Big Sioux River from the north and east was a meeting place for Native American Indians traveling the two rivers. Area tribes current to the 1804 Lewis and Clark expedition were the Omaha , Yankton Dakota and Ponca , all Siouan language speakers. French-Canadian farmer Joseph La Plant, born ca. 1823 in Indiana, settled at Sioux Point in 1849 and is listed with other early settlers in the 1860 census as living "Between Big Sioux and Big Stone Lake " in the "Unorganized" area of Minnesota , with the closest post office located immediately down and across the rivers in Sioux City , Iowa.
