Essex is located in Kankakee county Illinois with a geographic area of 2.3 square miles. The total population in Essex is 1,083 with 48.2% male and 51.8% female. Children under age 5 represent 10.2% of the population, under age 18 equal 31.4% of the population and over age 65 is 12.6% of the population. The median household income is $81,458, per capita income is $35,914. There are a total of 355 housing units with 90.4% owner occupied. Education includes 35.8% of residents that are high school graduates and 22.3% with a bachelor's degree or higher. The average temperature in Essex in the summer is 74 degrees, and in the winter 27 degrees.
