Wantagh is located in Nassau county New york with a geographic area of 3.8 square miles. The total population in Wantagh is 17,548 with 49.6% male and 50.4% female. Children under age 5 represent 5.6% of the population, under age 18 equal 24.4% of the population and over age 65 is 14.9% of the population. The median household income is $154,493, per capita income is $56,127. There are a total of 5,791 housing units with 94.9% owner occupied. Education includes 19.4% of residents that are high school graduates and 52.2% with a bachelor's degree or higher. The average temperature in Wantagh in the summer is 70 degrees, and in the winter 27 degrees.