Oswego is located in Kendall county Illinois with a geographic area of 14.9 square miles. The total population in Oswego is 35,470 with 48.8% male and 51.2% female. Children under age 5 represent 7.4% of the population, under age 18 equal 30.0% of the population and over age 65 is 10.6% of the population. The median household income is $97,330, per capita income is $37,053. There are a total of 11,566 housing units with 88.4% owner occupied. Education includes 15.5% of residents that are high school graduates and 47.9% with a bachelor's degree or higher. The average temperature in Oswego in the summer is 74 degrees, and in the winter 27 degrees.
