Lake in the hills is located in Mchenry county Illinois with a geographic area of 10.2 square miles. The total population in Lake in the hills is 28,617 with 48.4% male and 51.6% female. Children under age 5 represent 6.9% of the population, under age 18 equal 27.2% of the population and over age 65 is 7.6% of the population. The median household income is $96,470, per capita income is $38,782. There are a total of 9,783 housing units with 82.5% owner occupied. Education includes 19.2% of residents that are high school graduates and 40.3% with a bachelor's degree or higher. The average temperature in Lake in the hills in the summer is 74 degrees, and in the winter 27 degrees.
