Wilmette is located in Cook county Illinois with a geographic area of 5.4 square miles. The total population in Wilmette is 27,114 with 48.8% male and 51.2% female. Children under age 5 represent 6.1% of the population, under age 18 equal 28.6% of the population and over age 65 is 20.3% of the population. The median household income is $161,765, per capita income is $96,523. There are a total of 10,210 housing units with 88.4% owner occupied. Education includes 4.3% of residents that are high school graduates and 85.8% with a bachelor's degree or higher. The average temperature in Wilmette in the summer is 74 degrees, and in the winter 27 degrees.
