Kapolei is located in Honolulu county Hawaii with a geographic area of 4.4 square miles. The total population in Kapolei is 21,541 with 48.4% male and 51.6% female. Children under age 5 represent 8.9% of the population, under age 18 equal 30.7% of the population and over age 65 is 8.8% of the population. The median household income is $115,000, per capita income is $38,093. There are a total of 6,090 housing units with 72.3% owner occupied. Education includes 19.0% of residents that are high school graduates and 39.3% with a bachelor's degree or higher. The average temperature in Kapolei in the summer is 85 degrees, and in the winter 78 degrees.