Atlantic beach is located in Nassau county New york with a geographic area of 0.4 square miles. The total population in Atlantic beach is 1,341 with 44.7% male and 55.3% female. Children under age 5 represent 3.7% of the population, under age 18 equal 20.4% of the population and over age 65 is 27.2% of the population. The median household income is $147,566, per capita income is $86,163. There are a total of 565 housing units with 89.6% owner occupied. Education includes 14.0% of residents that are high school graduates and 55.2% with a bachelor's degree or higher. The average temperature in Atlantic beach in the summer is 70 degrees, and in the winter 27 degrees.