Knox County is in Western Illinois. Of the 102 counties in the Inland Empire, Knox County ranks 23rd in terms of size (460,704 acres). There is roughly 3,000 acres of farms for sale in Knox County, Illinois, based on recent Land Network data. The combined market value of farms and rural land for sale here is roughly $19 million. The average price of farmland for sale in Knox County was $2 million. Farms for sale in Knox County hold 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 lifestyle needs.