A combined approximately 1,000 acres were listed for sale in Illinois's Morgan County recently; the value of all Morgan County farmsand rural real estate for sale was around $6 million. Morgan County ranks 63rd out of 102 counties in the Land of Lincoln for the combined amount of land currently advertised for sale. Jacksonville had the most land for sale. Morgan County is Illinois's 43rd largest county (572 square miles). It's located in the Western Illinois region of Illinois.