Mundelein is a city located in Lake County Illinois. With a 2020 population of 30,787, it is the 61st largest city in Illinois and the 1265th largest city in the United States . Mundelein is currently declining at a rate of -0.43% annually and its population has decreased by -0.89% since the most recent census, which recorded a population of 31,064 in 2010. Mundelein reached it's highest population of 31,476 in 2015. Spanning over 10 miles, Mundelein has a population density of 3,229 people per square mile.
The average household income in Mundelein is $110,088 with a poverty rate of 5.03%. The median rental costs in recent years comes to $1,418 per month, and the median house value is $237,500. The median age in Mundelein is 37.2 years, 36.1 years for males, and 38.3 years for females.