Derby is located in Sedgwick county Kansas with a geographic area of 10.3 square miles. The total population in Derby is 24,428 with 48.3% male and 51.7% female. Children under age 5 represent 6.1% of the population, under age 18 equal 27.7% of the population and over age 65 is 15.0% of the population. The median household income is $74,447, per capita income is $33,229. There are a total of 9,090 housing units with 71.7% owner occupied. Education includes 17.1% of residents that are high school graduates and 41.6% with a bachelor's degree or higher. The average temperature in Derby in the summer is 78 degrees, and in the winter 32 degrees.
