Deuel County South Dakota has 10 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include South Dakota Dept. of Transportation Bridge No. 20-153-210 and South Dakota School for the Blind, Deuel County Courthouse and Jail, East Highland Lutheran Church and First National Bank.
Some of the country's most noteable architects helped create the Deuel County places including Security Bridge Company, "Captain" H.H. Herrick, Buechner & Orth, John Ling, Oakes,A.,Co. and Ben Kliegle. Prominent architectural styles found in Deuel Country are Classical Revival and Late Gothic Revival.