Prehistoric cultural affiliation(s) include Scottsbluff Culture, Paleo-Indian, Alberta Culture, Paleoindian, Archaic and Woodland dating back to 6499 BC.
Some of the country's most noteable architects helped create the Sioux County places including Harold J. Cook, Joseph L. Sandford and E.L. Goldsmith. Prominent architectural styles found in Sioux Country are Bungalow/Craftsman, Classical Revival and Late 19th And Early 20th Century American Movements.