Sleepy hollow is located in Westchester county New york with a geographic area of 2.2 square miles. The total population in Sleepy hollow is 10,089 with 46.5% male and 53.5% female. Children under age 5 represent 5.4% of the population, under age 18 equal 20.7% of the population and over age 65 is 16.4% of the population. The median household income is $86,026, per capita income is $50,210. There are a total of 3,932 housing units with 35.9% owner occupied. Education includes 18.9% of residents that are high school graduates and 38.0% with a bachelor's degree or higher. The average temperature in Sleepy hollow in the summer is 70 degrees, and in the winter 27 degrees.