Hancock County is in Western Illinois. Of the 102 counties in the Land of Lincoln, Hancock County is 17th in terms of its size (814 square miles). The total value of roughly 1,000 acres of residential land and property recently listed for sale in Hancock County, Illinois, was $6 million. The average price of residential acreage for sale in Hancock County was $280,190. Browse all residential land and rural property for sale in Illinois to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.