Yankton County is in Southeast South Dakota. Of the 66 counties in the state, 532-square-mile Yankton County ranks 59th by size. Recent Land Network data records about 2,000 acres of farms for sale in South Dakota's Yankton County, which is valued at a combined $11 million. The average price of farms for sale in Yankton County was $3 million. Farms for sale in Yankton County hold livestock including cattle and horses. Browse all South Dakota farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or individual needs.