Of 102 counties in the state, Clay County ranks 60th by size (469 square miles). Clay County is in Southern Illinois. There is almost 1,000 acres of lakefront land and property for sale in Illinois's Clay County based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here is almost $200,000. Browse all waterfront property for sale in Clay 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 Clay County is hunting land.