Calhoun County is in Southwest Illinois. Of the 102 counties in the Land of Lincoln, Calhoun County is 93rd in terms of its size (283 square miles). The most common type of land for sale by combined acreage in Calhoun County is homesite. Browse all waterfront property for sale in Calhoun 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!