Warren County Mississippi (Historic Districts) has 14 places on the National Register of Historic Places including 1 place of National significance. Significant places include Vicksburg National Military Park, Glenwood-Vicklan Historic District, Grove Street--Jackson Historic District, Harrison Street Historic District and Main Street Historic District.
Some of the country's most noteable architects helped create the Warren County places including Incorporated Hamilton and US Army Corps of Engineers. Prominent architectural styles found in Warren Country are Greek Revival, Italianate and Bungalow/Craftsman.