Of 102 counties in the Land of Lincoln, Montgomery County ranks 26th in terms of size (709 square miles). Montgomery County is in Central Illinois. Montgomery County, Illinois, has roughly 1,000 acres of lakefront land and property for sale based on recent Land Network data. The combined market value of farmsand rural real estate for sale here was nearly $400,000. Browse all waterfront property for sale in Montgomery 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 Montgomery County is residential property.