Of 102 counties in the Prairie State, 1,634-square-mile Cook County ranks first by size. Cook County is in the Chicagoland Illinois region. There is 1,000 acres of farms for sale in Cook County, Illinois, based on recent Land Network data. The combined market value of farmsand rural real estate for sale here is approximately $3 million. The average price of farms for sale in Cook County was $1 million. Farms for sale in Cook 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 commercial or lifestyle needs.