Mundelein is located in Lake county Illinois with a geographic area of 9.6 square miles. The total population in Mundelein is 31,574 with 50.6% male and 49.4% female. Children under age 5 represent 6.7% of the population, under age 18 equal 22.6% of the population and over age 65 is 14.5% of the population. The median household income is $91,535, per capita income is $39,003. There are a total of 11,085 housing units with 73.7% owner occupied. Education includes 16.5% of residents that are high school graduates and 47.3% with a bachelor's degree or higher. The average temperature in Mundelein in the summer is 74 degrees, and in the winter 27 degrees.
