
Gurnee
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 13.514
- State:
- Illinois
Gurnee is a village located in Lake County, Illinois. Gurnee has a 2025 population of 29,885. Gurnee is currently declining at a rate of -0.51% annually and its population has decreased by -2.51% since the most recent census, which recorded a population of 30,654 in 2020.
The average household income in Gurnee is $149,067 with a poverty rate of 5.5%. The median age in Gurnee is 40.4 years: 39.5 years for males, and 41 years for females.