Hempstead County Arkansas (Historic Districts) has 7 places on the National Register of Historic Places including 2 places of National significance and 2 places of Statewide significance. Significant places include Southwestern Proving Ground Airport Historic District, Washington Historic District, Dooley's Ferry Fortifications Historic District and Southwestern Proving Ground Officers Quarters Historic District and Hope Historic Commercial District.
Some of the country's most noteable architects helped create the Hempstead County places including James Knox Taylor and Siebert & Co. Witt. Prominent architectural styles found in Hempstead Country are Colonial Revival, Prairie School and Art Deco.