County Government: Elected Officials · County Commissioners DuPage County Board Chair Deborah A. Conroy 421 N County Farm Road, Wheaton, IL 60187
County Government: Elected Officials · County Commissioners DuPage County Board Member Brian Krajewski 1547 Warren Avenue, Downers Grove, IL 60515
County Government: Elected Officials · County Commissioners DuPage County Board Member Kari Galassi 610 W Hickory Street, Hinsdale, IL 60521
County Government: Elected Officials · County Sheriffs DuPage County Sheriff's Office The DuPage County Sheriff's Office serves the unincorporated areas of the 322-square-mile county, offering many countywide services and initiatives. 501 County Farm Road, Wheaton, IL 60187