Delaware County Iowa (Vacant / Not In Use) has 3 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Suckow, Ruth, House, Coffin's Grove Stagecoach House, McGee School.
Several famous people are associated with these Delaware County historic places including Ruth Suckow and Sarah Gillespie Huftalen. Prominent architectural styles found in Delaware Country are Colonial and Late Victorian.