Morgan County is in Western Illinois. Of the 102 counties in the Prairie State, Morgan County is 43rd in terms of its size (572 square miles). Recent listings of residential land for sale in Morgan County, Illinois, totals nearly 1,000 acres and a combined market value of roughly $4 million. The most common type of land for sale by combined acreage in Morgan County is residential property. The average price of residential land for sale in Morgan County was $247,571. 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.