Of 102 counties in the state, McLean County ranks third in terms of size (1,186 square miles). McLean County is in Central Illinois. McLean County, Illinois, includes 1,000 acres of lakefront property for sale based on recent Land Network data. The combined market value of land for sale here was about $700,000. Browse all waterfront property for sale in McLean 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 McLean County is undeveloped land.