Of 66 counties in the Coyote State, Bennett County is 23rd in terms of its size (1,190 square miles). Bennett County is in Black Hills & Badlands South Dakota. A recent survey of Land Network data totals nearly 1,000 acres of riverfront homes and property for sale in South Dakota's Bennett County, which is valued at a combined $3 million. Browse all waterfront property for sale in Bennett County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Bennett County is farms.