Oswego is located in Labette county Kansas with a geographic area of 2.4 square miles. The total population in Oswego is 1,683 with 46.8% male and 53.2% female. Children under age 5 represent 5.2% of the population, under age 18 equal 20.1% of the population and over age 65 is 20.5% of the population. The median household income is $42,237, per capita income is $25,096. There are a total of 754 housing units with 69.1% owner occupied. Education includes 26.3% of residents that are high school graduates and 22.7% with a bachelor's degree or higher. The average temperature in Oswego in the summer is 78 degrees, and in the winter 32 degrees.