Of 102 counties in the Land of Lincoln, McDonough County ranks 39th by size (590 square miles). McDonough County is in Western Illinois. There is around 1,000 acres of lakefront property for sale in McDonough County, Illinois, based on recent Land Network data. The combined market value of farms and rural land for sale here is almost $600,000. Browse all waterfront property for sale in McDonough 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 McDonough County is residential property.