East northport is located in Suffolk county New york with a geographic area of 5.2 square miles. The total population in East northport is 20,085 with 50.3% male and 49.7% female. Children under age 5 represent 5.8% of the population, under age 18 equal 21.1% of the population and over age 65 is 19.2% of the population. The median household income is $129,432, per capita income is $53,490. There are a total of 7,208 housing units with 87.0% owner occupied. Education includes 21.5% of residents that are high school graduates and 52.2% with a bachelor's degree or higher. The average temperature in East northport in the summer is 70 degrees, and in the winter 27 degrees.