Olmsted County Minnesota (Historic Districts) has 5 places on the National Register of Historic Places including 1 place of National significance and 3 places of Statewide significance. Significant places include Mayowood Historic District, Benike Family Farmstead, Mayowood Historic District and Stoppel, George, Farmstead and Pill Hill Residential Historic District.
Some of the country's most noteable architects helped create the Olmsted County places including Harold Crawford and Garfield Schwartz. Prominent architectural styles found in Olmsted Country are Colonial Revival, Prairie School and Tudor Revival.