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About Winnetka
Winnetka is located in Cook county Illinois with a geographic area of 3.8 square miles. The total population in Winnetka is 12,361 with 48.9% male and 51.1% female. Children under age 5 represent 7.9% of the population, under age 18 equal 32.4% of the population and over age 65 is 16.5% of the population. The median household income is $250,000, per capita income is $134,596. There are a total of 4,204 housing units with 90.5% owner occupied. Education includes 1.0% of residents that are high school graduates and 92.6% with a bachelor's degree or higher. The average temperature in Winnetka in the summer is 74 degrees, and in the winter 27 degrees.