Cook County, Illinois is governed by a 17-member governing board. The current president, county board is Toni Preckwinkle. See all 9 named officeholders and how to reach each office.
Population: 5,194,625.
Selected officeholders: President, County Board: Toni Preckwinkle · State's Attorney: Eileen O'Neill Burke · Sheriff: Thomas Dart · County Clerk: Cedric Giles · Clerk of the Circuit Court: Mariyana T. Spyropoulos · Recorder of Deeds: Cedric Giles.