Gages lake is located in Lake county Illinois with a geographic area of 3.0 square miles. The total population in Gages lake is 9,939 with 52.6% male and 47.4% female. Children under age 5 represent 5.8% of the population, under age 18 equal 23.2% of the population and over age 65 is 12.4% of the population. The median household income is $93,837, per capita income is $45,673. There are a total of 3,630 housing units with 82.2% owner occupied. Education includes 18.0% of residents that are high school graduates and 42.9% with a bachelor's degree or higher. The average temperature in Gages lake in the summer is 74 degrees, and in the winter 27 degrees.