Summit is located in Cook county Illinois with a geographic area of 2.1 square miles. The total population in Summit is 11,171 with 49.5% male and 50.5% female. Children under age 5 represent 8.3% of the population, under age 18 equal 30.3% of the population and over age 65 is 12.3% of the population. The median household income is $46,972, per capita income is $20,911. There are a total of 3,269 housing units with 53.4% owner occupied. Education includes 29.3% of residents that are high school graduates and 12.0% with a bachelor's degree or higher. The average temperature in Summit in the summer is 74 degrees, and in the winter 27 degrees.
