Tonganoxie is located in Leavenworth county Kansas with a geographic area of 4.1 square miles. The total population in Tonganoxie is 5,357 with 47.4% male and 52.6% female. Children under age 5 represent 9.3% of the population, under age 18 equal 31.5% of the population and over age 65 is 15.5% of the population. The median household income is $75,417, per capita income is $29,177. There are a total of 1,939 housing units with 73.4% owner occupied. Education includes 31.2% of residents that are high school graduates and 37.7% with a bachelor's degree or higher. The average temperature in Tonganoxie in the summer is 78 degrees, and in the winter 32 degrees.