For people with the surname, see Gurnee (surname).
Gurnee (/ˈɡɜːrˌniː/) is a village in Lake County, Illinois, United States. Its population was 31,295 as of the 2010 census. It borders the city of Waukegan and is considered a part of the Chicago metropolitan area. It is best known for being the location of Six Flags Great America and Gurnee Mills, together drawing over 26 million visitors annually.