Oshkosh is located in Winnebago county Wisconsin with a geographic area of 27.0 square miles. The total population in Oshkosh is 66,753 with 51.1% male and 48.9% female. Children under age 5 represent 5.5% of the population, under age 18 equal 17.6% of the population and over age 65 is 14.8% of the population. The median household income is $51,282, per capita income is $25,625. There are a total of 26,724 housing units with 57.1% owner occupied. Education includes 30.3% of residents that are high school graduates and 29.7% with a bachelor's degree or higher. The average temperature in Oshkosh in the summer is 70 degrees, and in the winter 17 degrees.