Of 102 counties in the Inland Empire, LaSalle County is fourth in terms of its size (1,148 square miles). LaSalle County is in Northern Illinois. LaSalle County, Illinois, has 1,000 acres of riverfront land and property for sale based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here was approximately $2 million. Browse all waterfront property for sale in LaSalle 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 LaSalle County is undeveloped land.