Olathe is located in Johnson county Kansas with a geographic area of 61.9 square miles. The total population in Olathe is 139,216 with 49.2% male and 50.8% female. Children under age 5 represent 7.2% of the population, under age 18 equal 28.3% of the population and over age 65 is 11.6% of the population. The median household income is $96,548, per capita income is $39,402. There are a total of 48,919 housing units with 73.0% owner occupied. Education includes 14.7% of residents that are high school graduates and 52.9% with a bachelor's degree or higher. The average temperature in Olathe in the summer is 77 degrees, and in the winter 32 degrees.
