Benton County Oregon (Historic Districts) has 6 places on the National Register of Historic Places including 1 place of National significance and 2 places of Statewide significance. Significant places include Hull--Oakes Lumber Company, Oregon State University Historic District and Oregon State University Historic District (Boundary Decrease), Avery--Helm Historic District and College Hill West Historic District.
Some of the country's most noteable architects helped create the Benton County places including Ralph Hull, John V. Bennes, Charles Heckart, Peterson, Adolph and et al.. Prominent architectural styles found in Benton Country are Beaux Arts, Bungalow/Craftsman and Colonial Revival.