Located in Northern Illinois, 1,148-square-mile LaSalle County is one of the ten biggest counties in the Prairie State. Recent listings of farms for sale in LaSalle County, Illinois, totals roughly 1,000 acres and a combined market value of $19 million. The most common type of land for sale by combined acreage in LaSalle County is undeveloped land. The average price of farms for sale in LaSalle County was $1 million. Farms for sale in LaSalle County support livestock including horses, cattle, goats, sheep and pig. Browse all Illinois farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or individual needs.