Lake County, Illinois is governed by a 21-member governing board. The current chair, county board is Sandy Hart. See all 10 named officeholders and how to reach each office.
Population: 719,339.
Selected officeholders: Chair, County Board: Sandy Hart · State's Attorney: Eric Rinehart · Sheriff: John D. Idleburg · County Clerk: Anthony Vega · Clerk of the Circuit Court: Erin Cartwright Weinstein · Recorder of Deeds: Anthony Vega.