West chicago is located in Dupage county Illinois with a geographic area of 15.4 square miles. The total population in West chicago is 26,998 with 49.5% male and 50.5% female. Children under age 5 represent 6.9% of the population, under age 18 equal 28.0% of the population and over age 65 is 9.2% of the population. The median household income is $77,098, per capita income is $30,245. There are a total of 7,838 housing units with 70.4% owner occupied. Education includes 24.8% of residents that are high school graduates and 33.8% with a bachelor's degree or higher. The average temperature in West chicago in the summer is 73 degrees, and in the winter 27 degrees.