Of 102 counties in the Prairie State, 1 million-acre Cook County ranks first by size. Cook County is in the Chicagoland Illinois region. Recent listings of commercial land and property for sale in Illinois's Cook County totals about 5,000 acres and a combined market value of roughly $15 million. The most common type of land for sale by combined acreage in Cook County is undeveloped land. The average price of commercial acreage for sale in Cook County was $1 million. Some suggested uses for commercial property currently for sale in Cook County include for commercial, agriculture, and hunting/fishing use. Some common wildlife species to be found on undeveloped land for sale in Cook County include turkey, whitetail deer, ducks and geese. Current commercial applications for commercial property for sale in Cook County include for commercial, agriculture and hunting/fishing use. Browse all Illinois commercial land and property for sale on the Land Network to find your next commercial property or land investment.