Of 66 counties in the Coyote State, Lyman County ranks 14th by size (1,706 square miles). Lyman County is in Great Lakes South Dakota. South Dakota's Lyman County has 2,000 acres of riverfront homes and property for sale based on recent Land Network data. The combined market value of land for sale here was $5 million. Browse all waterfront property for sale in Lyman 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 Lyman County is recreational property.