Barrington is located in Lake county Illinois with a geographic area of 4.6 square miles. The total population in Barrington is 10,442 with 45.7% male and 54.3% female. Children under age 5 represent 6.0% of the population, under age 18 equal 26.9% of the population and over age 65 is 20.1% of the population. The median household income is $112,794, per capita income is $64,507. There are a total of 3,988 housing units with 73.5% owner occupied. Education includes 6.6% of residents that are high school graduates and 73.2% with a bachelor's degree or higher. The average temperature in Barrington in the summer is 74 degrees, and in the winter 27 degrees.
