The 80th district, located in the Chicagoland area, includes all or parts of Chicago Heights, Flossmoor, Frankfort, Glenwood, Hazel Crest, Homewood, Joliet, Manhattan, Matteson, Mokena, Monee, New Lenox, Olympia Fields, Park Forest, Richton Park, South Chicago Heights, Steger, Symerton, University Park, and Wilmington.