Deuel County is in Glacial Lakes & Prairies South Dakota. Of the 66 counties in the Coyote State, 636-square-mile Deuel County ranks 49th by size. A recent survey of Land Network data shows almost 1,000 acres of residential land and property for sale in South Dakota's Deuel County, which is valued at a combined $2 million. The average price of residential land for sale in Deuel County was $562,450. The economy here is mainly agricultural. Browse all residential land and rural property for sale in South Dakota to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.