The combined value of farms and rural land for sale in Macon County, Illinois, recently on Land.com was almost $18 million. This represents 1,000 acres of farms, hunting land and other rural land and acreage for sale in Macon County. Macon County ranks 27th out of 102 counties in the Land of Lincoln for the total acreage of land currently advertised for sale. Of all farms and rural real estate for sale in Macon County, Decatur featured the most land for sale. Manufacturing and related services are the largest economic sectors in Macon County. Macon County is the 40th largest county (585 square miles) in Illinois. It's located in the Central Illinois region of Illinois.