Washington County Utah (Vacant / Not In Use) has 13 places on the National Register of Historic Places including 2 places of National significance and 8 places of Statewide significance. Significant places include Washington Cotton Factory, Wells Fargo and Company Express Building, Crawford Irrigation Canal, Deseret Telegraph and Post Office and Leeds Tithing Office.
Some of the country's most noteable architects helped create the Washington County places including Appleton Harmon, NPS, Harry Langley, W.G. Carnes, Edward Huber, John C. Naegle, Civilian Conservation Corps, Dode Wiethen and Lewis Campbell. Prominent architectural styles found in Washington Country are Greek Revival and Late Victorian.