
Highland Park
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 12.234
- State:
- Illinois
Highland Park is a city located in Lake County, Illinois. Highland Park has a 2025 population of 30,350. Highland Park is currently growing at a rate of 0.13% annually and its population has increased by 0.65% since the most recent census, which recorded a population of 30,155 in 2020.
The average household income in Highland Park is $247,484 with a poverty rate of 3.26%. The median age in Highland Park is 46 years: 44.9 years for males, and 47.5 years for females.