Grant County South Dakota (Vacant / Not In Use) has 4 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include Hollands Grist Mill and Brown Earth Presbyterian Church, Big Stone City Hall, Lebanon Lutheran Church.
Some of the country's most noteable architects helped create the Grant County places including Henry Hollands. Prominent architectural styles found in Grant Country are Early Commercial and Late Gothic Revival.