Lake County, Illinois

Lake County
Lake County Courthouse in Waukegan
Location within the U.S. state of Illinois
Illinois's location within the U.S.
Coordinates: 42°26′N 87°47′W / 42.43°N 87.78°W / 42.43; -87.78
Country United States
State Illinois
FoundedMarch 1, 1839
Named forLake Michigan
SeatWaukegan
Largest cityWaukegan
Area
 • Total1,368 sq mi (3,540 km2)
 • Land444 sq mi (1,150 km2)
 • Water925 sq mi (2,400 km2)  67.6%
Population
 • Total714,342
 • Density520/sq mi (200/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Websitewww.lakecountyil.gov

Lake County is a county in northeast Illinois. As of the 2020 census, the population was 714,342.[1] Some of the main cities are Waukegan and Libertyville.

References

  1. 1.0 1.1 "QuickFacts: Lake County, Illinois". United States Census Bureau. Retrieved August 14, 2023.