70 ILCS 1820/2.21

"Mayor" means the mayor, president, or other chief elected official of the following municipalities, as the case may require: the City of Grand Tower, the Village of Dowell, the City of Ava, the City of Murphysboro, the City of Carbondale, the City of Anna, the Village of Cobden, the Village of Makanda, the City of Jonesboro, the Village of Alto Pass, the Village of Elkville, the Village of Dongola, the Village of Campbell Hill, the Village of Mill Creek, the Village of Vergennes, the Village of DeSoto, and the Village of Gorham.