Dewey County, SD Land for Sale

Dewey County is South Dakota's sixth largest county (2,445 square miles). Dewey County is in the Great Lakes South Dakota region of the state. To find more land for sale in South Dakota, sign up for our South Dakota land-for-sale email alerts to get notifications about new land listings in Dewey County matching your search parameters on Land And Farm! You can also search Land And Farm to find South Dakota land brokers and agents who specialize in selling land, rural acreage and other recreational property in regions throughout South Dakota.