National harbor is located in Prince george's county Maryland with a geographic area of 1.3 square miles. The total population in National harbor is 3,998 with 50.0% male and 50.0% female. Children under age 5 represent 3.9% of the population, under age 18 equal 11.1% of the population and over age 65 is 14.2% of the population. The median household income is $109,559, per capita income is $64,101. There are a total of 1,880 housing units with 47.2% owner occupied. Education includes 26.1% of residents that are high school graduates and 42.3% with a bachelor's degree or higher. The average temperature in National harbor in the summer is 74 degrees, and in the winter 37 degrees.
