There was a combined approximately $22 million of farms, hunting land and other rural land and acreage for sale in Macon County recently on Land.com. The total of all Macon County farms and rural real estate for sale was approximately 1,000 acres. Macon County ranks 26th out of 102 counties in the Prairie State for the combined amount of land currently advertised for sale. 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.