Land for sale in Illinois's White County recently totaled around $3 million and almost 1,000 acres. White County ranks 73rd in the Land of Lincoln for the total number of acres of land currently advertised for sale. Of all locations in White County with farms and rural land for sale, Carmi had the most land for sale. Mining and mineral extraction-related services are the main economic drivers in this part of Illinois. White County is the 56th largest county (501 square miles) in Illinois. It's located in the Southern Illinois region of Illinois.