DeKalb County is in Northern Illinois. Of the 102 counties in the Inland Empire, DeKalb County is 31st in terms of its size (634 square miles). The total value of roughly 3,000 acres of farms recently listed for sale in DeKalb County, Illinois, was almost $72 million. The average price of farmland for sale in DeKalb County was $5 million. Farms for sale in DeKalb County sustain 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 business or individual needs.