Of 66 counties in the Coyote State, Custer County ranks 16th by size (1,559 square miles). Custer County is in Black Hills & Badlands South Dakota. The total value of roughly 1,000 acres of lakefront homes and property recently listed for sale in South Dakota's Custer County was $3 million. Browse all waterfront property for sale in Custer 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 Custer County is residential property.