The value of farms and rural land for sale in Macon County recently on Land.com was approximately $22 million. This represents approximately 1,000 acres of farms, hunting land and other rural land and acreage for sale in Macon County. Macon County ranks 27th in the Inland Empire for the combined amount of land currently advertised for sale. Of all locations in Macon County with land for sale, Decatur had the most land for sale. Manufacturing and related services are the largest economic sectors in Macon County. Macon County is the 40th biggest county (585 square miles) in Illinois. It's located in the Central Illinois region of the state.