Walworth County is in Great Lakes South Dakota. Of the 66 counties in the Coyote State, 744-square-mile Walworth County ranks 45th by size. The most common type of land for sale by combined acreage in Walworth County is residential property. Browse all waterfront property for sale in Walworth 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!