Prehistoric cultural affiliation(s) include Cascade Phase, Windust Phase, Cold-Springs Subphase, Wanapum, Native American, Cayuse and Frenchman Springs dating back to 10999 BC.
Some of the country's most noteable architects helped create the Benton County places including Gustav Albin Pehrson, Smith, Hoffman and Wight Co., et al, DuPont de Nemours,E.I.,& Co., D.C. Maloney, Homer M. Hadley, George Rasquil, Everett McKellar, Ernest Norling and Louis A. Simon. Prominent architectural styles found in Benton Country are Classical Revival, Modern Movement and Moderne.