Suffern is located in Rockland county New york with a geographic area of 2.1 square miles. The total population in Suffern is 10,945 with 46.8% male and 53.2% female. Children under age 5 represent 4.9% of the population, under age 18 equal 20.1% of the population and over age 65 is 21.8% of the population. The median household income is $86,383, per capita income is $43,593. There are a total of 4,592 housing units with 68.3% owner occupied. Education includes 19.8% of residents that are high school graduates and 49.7% with a bachelor's degree or higher. The average temperature in Suffern in the summer is 70 degrees, and in the winter 27 degrees.