Halesite is located in Suffolk county New york with a geographic area of 0.9 square miles. The total population in Halesite is 2,483 with 44.5% male and 55.5% female. Children under age 5 represent 2.2% of the population, under age 18 equal 17.6% of the population and over age 65 is 24.4% of the population. The median household income is $142,396, per capita income is $76,286. There are a total of 1,011 housing units with 87.4% owner occupied. Education includes 13.1% of residents that are high school graduates and 69.7% with a bachelor's degree or higher. The average temperature in Halesite in the summer is 70 degrees, and in the winter 27 degrees.