East marion is located in Suffolk county New york with a geographic area of 2.2 square miles. The total population in East marion is 1,144 with 42.3% male and 57.7% female. Children under age 5 represent 3.7% of the population, under age 18 equal 11.7% of the population and over age 65 is 35.6% of the population. The median household income is $86,900, per capita income is $57,424. There are a total of 532 housing units with 80.6% owner occupied. Education includes 19.4% of residents that are high school graduates and 50.2% with a bachelor's degree or higher. The average temperature in East marion in the summer is 70 degrees, and in the winter 27 degrees.