The 15th District includes all, or parts of, Beecher, Blue Island, Bourbonnais, Bradley, Burnham, Calumet City, Chicago, Chicago Heights, Country Club Hills, Crestwood, Crete, Dixmoor, Dolton, East Hazel Crest, Flossmoor, Ford Heighs, Glenwood, Goodenow, Harvey, Hazel Crest, Homewood, Kankakee, Lansing, Lynwood, Manteno, Markham, Midlothian, Momence, Oak Forest, Olympia Fields, Park Forest, Peotone, Phoenix, Posen, Riverdale, Robbins, Sauk Village, South Chicago Heights, South Holland, Steger, Thornton, Tinley Park and University Park.