The value of all farmsand rural real estate for sale in Wabash County, Illinois, recently was almost $5 million, representing a total of 115 acres of land for sale in Wabash County. Wabash County ranks 78th in the Land of Lincoln for the combined amount of land currently advertised for sale. Of all locations in Wabash County with farms, rural land, hunting land and other land for sale, Mount Carmel featured 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.