Yaphank is located in Suffolk county New york with a geographic area of 13.6 square miles. The total population in Yaphank is 6,060 with 52.8% male and 47.2% female. Children under age 5 represent 7.3% of the population, under age 18 equal 18.0% of the population and over age 65 is 13.8% of the population. The median household income is $99,070, per capita income is $43,706. There are a total of 2,320 housing units with 75.6% owner occupied. Education includes 42.9% of residents that are high school graduates and 27.9% with a bachelor's degree or higher. The average temperature in Yaphank in the summer is 70 degrees, and in the winter 27 degrees.
