The 115th district includes all or parts of Alto Pass, Anna, Ashley, Ava, Belle Rive, Bluford, Bonnie, Campbell Hill, Carbondale, Centralia, Cobden, De Soto, Dix, Dongola, Du Bois, Du Quoin, Elkville, Gorham, Grand Tower, Harrison, Ina, Jonesboro, Makanda, Mill Creek, Mount Vernon, Murphysboro, Nashville, Opdyke, Pinckneyville, Radom, Richview, St. Johns, Tamaroa, Vergennes, Waltonville, and Woodlawn.