Sioux County Nebraska (Vacant / Not In Use) has 2 places on the National Register of Historic Places including 1 place of National significance and 2 places of Statewide significance. Significant places include Cook, Harold J., Homestead Cabin, Cook, Harold J., Homestead Cabin and Sandford Dugout.
Some of the country's most noteable architects helped create the Sioux County places including Harold J. Cook and Joseph L. Sandford. Prominent architectural styles found in Sioux Country are .