District 40
Counties:
- Cook County
- Iroquois County
- Kankakee County
- Will County Towns, Villages and Cities
- Aroma Park
- Beaverville
- Beecher
- Bourbonnais (partial)
- Bradley
- Chicago Heights
- Crete
- Donovan
- Flossmoor (partial)
- Glenwood (partial)
- Grant Park
- Homewood (partial)
- Hopkins Park
- Kankakee (partial)
- Lynwood
- Manteno
- Martinton
- Momence
- Monee
- Olympia Fields (partial)
- Papineau
- Park Forest (partial)
- Peotone
- Sauk Village
- South Chicago Heights
- Steger
- St. Anne
- University Park