Lyons is located in Cook county Illinois with a geographic area of 2.2 square miles. The total population in Lyons is 10,338 with 49.0% male and 51.0% female. Children under age 5 represent 8.3% of the population, under age 18 equal 24.7% of the population and over age 65 is 15.7% of the population. The median household income is $66,005, per capita income is $28,221. There are a total of 3,651 housing units with 61.2% owner occupied. Education includes 27.1% of residents that are high school graduates and 21.2% with a bachelor's degree or higher. The average temperature in Lyons in the summer is 74 degrees, and in the winter 27 degrees.