Lemont is located in Cook county Illinois with a geographic area of 8.3 square miles. The total population in Lemont is 17,131 with 50.2% male and 49.8% female. Children under age 5 represent 4.3% of the population, under age 18 equal 25.1% of the population and over age 65 is 18.3% of the population. The median household income is $114,509, per capita income is $45,675. There are a total of 5,911 housing units with 82.9% owner occupied. Education includes 23.2% of residents that are high school graduates and 45.0% with a bachelor's degree or higher. The average temperature in Lemont in the summer is 74 degrees, and in the winter 27 degrees.
