Lenexa is located in Johnson county Kansas with a geographic area of 34.1 square miles. The total population in Lenexa is 54,804 with 49.4% male and 50.6% female. Children under age 5 represent 6.5% of the population, under age 18 equal 21.7% of the population and over age 65 is 15.2% of the population. The median household income is $90,487, per capita income is $47,365. There are a total of 22,864 housing units with 58.7% owner occupied. Education includes 11.7% of residents that are high school graduates and 58.7% with a bachelor's degree or higher. The average temperature in Lenexa in the summer is 77 degrees, and in the winter 32 degrees.