Park forest is located in Cook county Illinois with a geographic area of 5.0 square miles. The total population in Park forest is 20,715 with 46.7% male and 53.3% female. Children under age 5 represent 5.2% of the population, under age 18 equal 22.9% of the population and over age 65 is 15.1% of the population. The median household income is $56,393, per capita income is $26,078. There are a total of 8,179 housing units with 58.4% owner occupied. Education includes 14.8% of residents that are high school graduates and 32.7% with a bachelor's degree or higher. The average temperature in Park forest in the summer is 74 degrees, and in the winter 27 degrees.