Maple valley is located in King county Washington with a geographic area of 6.0 square miles. The total population in Maple valley is 26,739 with 49.4% male and 50.6% female. Children under age 5 represent 7.2% of the population, under age 18 equal 31.7% of the population and over age 65 is 8.0% of the population. The median household income is $117,706, per capita income is $43,234. There are a total of 8,855 housing units with 85.0% owner occupied. Education includes 19.8% of residents that are high school graduates and 48.0% with a bachelor's degree or higher. The average temperature in Maple valley in the summer is 61 degrees, and in the winter 42 degrees.
