The market value of land recently listed for sale in the Northern region of Illinois is $887 million. The region ranks second in the state by total land value. Of the 18,000 acres of land listed for sale in Illinois's Northern region, McHenry County has the most farms and rural land for sale in the Northern region of Illinois. Based on data from the Land Network Comparable Sales program, Winnebago County recorded the most recent sales activity. Looking for more farmsand rural real estate for sale in Illinois? Browse the Land Network for thousands more available land listings and rural real estate for sale throughout the state.