Ottumwa is located in Wapello county Iowa with a geographic area of 16.1 square miles. The total population in Ottumwa is 24,505 with 49.8% male and 50.2% female. Children under age 5 represent 6.9% of the population, under age 18 equal 22.3% of the population and over age 65 is 15.6% of the population. The median household income is $42,418, per capita income is $24,602. There are a total of 10,152 housing units with 61.4% owner occupied. Education includes 28.8% of residents that are high school graduates and 21.1% with a bachelor's degree or higher. The average temperature in Ottumwa in the summer is 74 degrees, and in the winter 23 degrees.
