Kankakee is located in Kankakee county Illinois with a geographic area of 15.1 square miles. The total population in Kankakee is 25,818 with 48.6% male and 51.4% female. Children under age 5 represent 6.9% of the population, under age 18 equal 26.0% of the population and over age 65 is 13.8% of the population. The median household income is $38,763, per capita income is $20,680. There are a total of 9,540 housing units with 47.9% owner occupied. Education includes 32.1% of residents that are high school graduates and 13.0% with a bachelor's degree or higher. The average temperature in Kankakee in the summer is 72 degrees, and in the winter 27 degrees.