Norwalk is located in Fairfield county Connecticut with a geographic area of 22.9 square miles. The total population in Norwalk is 88,755 with 49.1% male and 50.9% female. Children under age 5 represent 5.7% of the population, under age 18 equal 19.4% of the population and over age 65 is 15.3% of the population. The median household income is $89,486, per capita income is $52,812. There are a total of 34,427 housing units with 57.3% owner occupied. Education includes 18.5% of residents that are high school graduates and 47.8% with a bachelor's degree or higher. The average temperature in Norwalk in the summer is 71 degrees, and in the winter 27 degrees.