Dix hills is located in Suffolk county New york with a geographic area of 15.7 square miles. The total population in Dix hills is 23,995 with 52.0% male and 48.0% female. Children under age 5 represent 4.3% of the population, under age 18 equal 21.9% of the population and over age 65 is 20.1% of the population. The median household income is $174,786, per capita income is $74,221. There are a total of 7,909 housing units with 97.2% owner occupied. Education includes 12.4% of residents that are high school graduates and 62.7% with a bachelor's degree or higher. The average temperature in Dix hills in the summer is 70 degrees, and in the winter 27 degrees.