There was a combined nearly $2 million of farms, ranches, hunting land and other land for sale in Grant County recently on Land.com. The total acreage of all Grant County farms and ranches for sale was 1,000 acres. Grant County ranks 35th in the state for the combined amount of land currently advertised for sale. Among cities in Grant County with farms, ranches, hunting land and other land for sale, Milbank had the most land for sale. Grant County is South Dakota's 48th biggest county (687 square miles). It's located in the Glacial Lakes & Prairies South Dakota region of the state.