Capitol heights is located in Prince george's county Maryland with a geographic area of 0.8 square miles. The total population in Capitol heights is 4,505 with 50.4% male and 49.6% female. Children under age 5 represent 9.6% of the population, under age 18 equal 28.8% of the population and over age 65 is 11.4% of the population. The median household income is $72,209, per capita income is $33,200. There are a total of 1,448 housing units with 75.1% owner occupied. Education includes 30.0% of residents that are high school graduates and 23.6% with a bachelor's degree or higher. The average temperature in Capitol heights in the summer is 74 degrees, and in the winter 37 degrees.