A combined almost 2,000 acres were listed for sale in South Dakota's Mellette County recently; the overall value of all Mellette County land and rural real estate for sale was $5 million. Mellette County ranks 37th in South Dakota for the total acreage of land currently advertised for sale. Of all farms, ranches, and rural real estate for sale in Mellette County, White River had the most land for sale. Mellette County has a large agricultural economy, with 229 farms recorded in the county during the latest U.S. Census. Farming activities in Mellette County generate annual revenues of $3 million, the majority of which comes from livestock products. Mellette County is South Dakota's 21st largest county (1,310 square miles). It's located in the Black Hills & Badlands South Dakota region of South Dakota.