Syosset is located in Nassau county New york with a geographic area of 5.0 square miles. The total population in Syosset is 19,254 with 51.1% male and 48.9% female. Children under age 5 represent 3.6% of the population, under age 18 equal 27.5% of the population and over age 65 is 16.1% of the population. The median household income is $161,029, per capita income is $67,751. There are a total of 6,186 housing units with 92.2% owner occupied. Education includes 10.7% of residents that are high school graduates and 71.0% with a bachelor's degree or higher. The average temperature in Syosset in the summer is 70 degrees, and in the winter 27 degrees.
