There was a combined around $4 million of farms and rural land for sale in Wabash County, Illinois, recently on Land.com. The total size of all Wabash County land for sale was nearly 1,000 acres. Wabash County ranks 85th in Illinois for the total number of acres of land currently advertised for sale. Among cities in Wabash County with farms and rural real estate for sale, Mount Carmel had the most land for sale. Economically speaking, Wabash County's is largely dependent on mining and mineral extraction-related businesses and services. Wabash County is Illinois's 98th largest county (227 square miles). It's located in the Southern Illinois region of Illinois.