Mount Carmel is a city in and the county seat of Wabash County, Illinois, United States. At the time of the 2020 census, the population was 7,015, and it is the largest city in the county. The next largest town in Wabash County is Allendale, population 458.
Located at the confluence of the Wabash, Patoka, and White rivers, Mount Carmel borders both Gibson and Knox counties of Indiana. A small community known informally as East Mount Carmel sits near the mouth of the Patoka River on the opposite (Gibson County) side of the Wabash River from Mount Carmel. Mount Carmel is 5 miles (8.0 km) northeast of the Forest of the Wabash, a National Natural Landmark within Beall Woods State Park and about a mile north-northeast of one of its main employers, the Gibson Generating Station. Mount Carmel is also the home of Wabash Valley College, part of the Community College System of Eastern Illinois.
