Mazon is located in Grundy county Illinois with a geographic area of 0.6 square miles. The total population in Mazon is 1,222 with 51.7% male and 48.3% female. Children under age 5 represent 7.0% of the population, under age 18 equal 24.8% of the population and over age 65 is 15.2% of the population. The median household income is $60,966, per capita income is $32,776. There are a total of 477 housing units with 70.0% owner occupied. Education includes 38.2% of residents that are high school graduates and 10.9% with a bachelor's degree or higher. The average temperature in Mazon in the summer is 74 degrees, and in the winter 27 degrees.