Massapequa is located in Nassau county New york with a geographic area of 3.6 square miles. The total population in Massapequa is 21,531 with 50.1% male and 49.9% female. Children under age 5 represent 4.4% of the population, under age 18 equal 22.1% of the population and over age 65 is 17.5% of the population. The median household income is $137,618, per capita income is $55,938. There are a total of 7,151 housing units with 95.7% owner occupied. Education includes 18.7% of residents that are high school graduates and 49.9% with a bachelor's degree or higher. The average temperature in Massapequa in the summer is 70 degrees, and in the winter 27 degrees.