Sparkill is located in Rockland county New york with a geographic area of 0.5 square miles. The total population in Sparkill is 1,399 with 47.0% male and 53.0% female. Children under age 5 represent 6.9% of the population, under age 18 equal 18.0% of the population and over age 65 is 9.9% of the population. The median household income is $146,250, per capita income is $55,642. There are a total of 464 housing units with 90.5% owner occupied. Education includes 13.4% of residents that are high school graduates and 57.8% with a bachelor's degree or higher. The average temperature in Sparkill in the summer is 70 degrees, and in the winter 27 degrees.