The value of all farms, ranches, hunting land and other land for sale in Mellette County, South Dakota, recently was almost $2 million, representing a combined 322 acres of land for sale in Mellette County. Mellette County ranks 51st in the Coyote State for the total number of acres of land currently advertised for sale. Of all ranches, farms, hunting land and other rural land and acreage for sale in Mellette County, White River featured 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 the state.