A total of almost 2,000 acres were listed for sale in South Dakota's Brown County recently; the value of all Brown County land for sale was approximately $9 million. Brown County ranks 24th in the state for the combined amount of land currently advertised for sale. Among cities in Brown County with ranches, farms, hunting land and other rural land and acreage for sale, Aberdeen featured the most land for sale. Brown County is South Dakota's 13th largest county (1,730 square miles). It's located in the Glacial Lakes & Prairies South Dakota region of South Dakota.