Osawatomie is located in Miami county Kansas with a geographic area of 5.3 square miles. The total population in Osawatomie is 4,279 with 48.5% male and 51.5% female. Children under age 5 represent 4.9% of the population, under age 18 equal 23.6% of the population and over age 65 is 14.6% of the population. The median household income is $51,307, per capita income is $22,797. There are a total of 1,614 housing units with 61.5% owner occupied. Education includes 44.6% of residents that are high school graduates and 17.3% with a bachelor's degree or higher. The average temperature in Osawatomie in the summer is 78 degrees, and in the winter 32 degrees.