Fall River County is in Black Hills & Badlands South Dakota. Of the 66 counties in the Coyote State, 1 million-acre Fall River County ranks 12th by size. There is nearly 1,000 acres of residential land and property for sale in Fall River County, South Dakota, based on recent Land Network data, making it the most common type of land for sale in Fall River County. The combined market value of farms, ranches, hunting land and other land for sale here is $20 million. The average price of residential land for sale in Fall River County was $448,309. Browse all residential land and rural property for sale in South Dakota to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.