Of 66 counties in the Mount Rushmore State, Lincoln County is 52nd in terms of its size (577 square miles). Lincoln County is in Southeast South Dakota. A recent survey of Land Network data totals approximately 1,000 acres of riverfront property for sale in South Dakota's Lincoln County, which is valued at a combined $2 million. Browse all waterfront property for sale in Lincoln 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 Lincoln County is house.