Roslyn is located in Nassau county New york with a geographic area of 0.6 square miles. The total population in Roslyn is 2,888 with 39.7% male and 60.3% female. Children under age 5 represent 3.2% of the population, under age 18 equal 13.9% of the population and over age 65 is 29.8% of the population. The median household income is $112,037, per capita income is $101,420. There are a total of 1,418 housing units with 60.6% owner occupied. Education includes 5.4% of residents that are high school graduates and 82.9% with a bachelor's degree or higher. The average temperature in Roslyn in the summer is 70 degrees, and in the winter 27 degrees.
