Of 66 counties in the Coyote State, Day County ranks 28th in terms of size (1,091 square miles). Day County is in Glacial Lakes & Prairies South Dakota. Recent listings of lakefront property for sale in Day County, South Dakota, totals about 1,000 acres and a combined market value of almost $900,000. The most common type of land for sale by combined acreage in Day County is homesite. Browse all waterfront property for sale in Day 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 Day County is homesite.