Fox lake is located in Lake county Illinois with a geographic area of 7.8 square miles. The total population in Fox lake is 10,739 with 45.8% male and 54.2% female. Children under age 5 represent 6.9% of the population, under age 18 equal 15.9% of the population and over age 65 is 20.1% of the population. The median household income is $62,615, per capita income is $35,159. There are a total of 4,911 housing units with 67.5% owner occupied. Education includes 29.6% of residents that are high school graduates and 23.4% with a bachelor's degree or higher. The average temperature in Fox lake in the summer is 74 degrees, and in the winter 27 degrees.