Mount prospect is located in Cook county Illinois with a geographic area of 10.7 square miles. The total population in Mount prospect is 54,165 with 49.7% male and 50.3% female. Children under age 5 represent 7.4% of the population, under age 18 equal 22.9% of the population and over age 65 is 18.1% of the population. The median household income is $84,353, per capita income is $40,452. There are a total of 20,855 housing units with 69.2% owner occupied. Education includes 19.2% of residents that are high school graduates and 45.2% with a bachelor's degree or higher. The average temperature in Mount prospect in the summer is 74 degrees, and in the winter 27 degrees.