Illinois’ 8th Congressional district leans strongly Democratic and covers Cook, DuPage & Kane counties.
The 8th includes all or parts of Addison, Arlington Heights, Bensenville, Bloomingdale, Carol Stream, Carpentersville, Elgin, Elk Grove Village, Elmhurst, Glendale Heights, Hanover Park, Hoffman Estates, Itasca, Lombard, Medinah, Oakbrook Terrace, Palatine, Roselle, Rolling Meadows, Schaumburg, South Barrington, Streamwood, Villa Park and Wood Dale.