Oskaloosa is located in Mahaska county Iowa with a geographic area of 8.0 square miles. The total population in Oskaloosa is 11,727 with 49.0% male and 51.0% female. Children under age 5 represent 6.6% of the population, under age 18 equal 23.6% of the population and over age 65 is 19.5% of the population. The median household income is $49,856, per capita income is $27,920. There are a total of 4,822 housing units with 58.2% owner occupied. Education includes 31.5% of residents that are high school graduates and 24.0% with a bachelor's degree or higher. The average temperature in Oskaloosa in the summer is 72 degrees, and in the winter 23 degrees.
