Forest park is located in Cook county Illinois with a geographic area of 2.4 square miles. The total population in Forest park is 13,808 with 46.0% male and 54.0% female. Children under age 5 represent 5.4% of the population, under age 18 equal 14.7% of the population and over age 65 is 15.8% of the population. The median household income is $70,670, per capita income is $46,969. There are a total of 6,695 housing units with 49.3% owner occupied. Education includes 15.5% of residents that are high school graduates and 54.0% with a bachelor's degree or higher. The average temperature in Forest park in the summer is 74 degrees, and in the winter 27 degrees.