Prehistoric cultural affiliation(s) include Caddoan (Pawnee) and Coalescent Villagers dating back to 1999 BC.
Several famous people are associated with these Polk County historic places including John Hopwood Mickey, Charles H. Morrill and Victor E. Wilson.
Some of the country's most noteable architects helped create the Polk County places including William F. Gernandt and Ludwig Rudeen. Prominent architectural styles found in Polk Country are Beaux Arts, Bungalow/Craftsman and Shingle Style.