
Mundelein
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 9.718
- State:
- Illinois
Mundelein is a village located in Lake County, Illinois. Mundelein has a 2025 population of 31,961. Mundelein is currently growing at a rate of 0.27% annually and its population has increased by 1.36% since the most recent census, which recorded a population of 31,533 in 2020.
The average household income in Mundelein is $128,940 with a poverty rate of 8.48%. The median age in Mundelein is 38.3 years: 38.5 years for males, and 37.9 years for females.