Grant park is located in Kankakee county Illinois with a geographic area of 3.4 square miles. The total population in Grant park is 1,681 with 51.0% male and 49.0% female. Children under age 5 represent 10.4% of the population, under age 18 equal 36.6% of the population and over age 65 is 15.8% of the population. The median household income is $63,688, per capita income is $24,845. There are a total of 511 housing units with 71.2% owner occupied. Education includes 42.5% of residents that are high school graduates and 10.4% with a bachelor's degree or higher. The average temperature in Grant park in the summer is 74 degrees, and in the winter 27 degrees.