Kirkland is located in King county Washington with a geographic area of 17.8 square miles. The total population in Kirkland is 91,146 with 49.5% male and 50.5% female. Children under age 5 represent 6.4% of the population, under age 18 equal 20.2% of the population and over age 65 is 13.5% of the population. The median household income is $116,595, per capita income is $64,268. There are a total of 37,142 housing units with 62.2% owner occupied. Education includes 8.2% of residents that are high school graduates and 65.1% with a bachelor's degree or higher. The average temperature in Kirkland in the summer is 64 degrees, and in the winter 42 degrees.
