Piermont is located in Rockland county New york with a geographic area of 0.7 square miles. The total population in Piermont is 2,541 with 52.0% male and 48.0% female. Children under age 5 represent 6.5% of the population, under age 18 equal 12.0% of the population and over age 65 is 21.6% of the population. The median household income is $127,667, per capita income is $71,168. There are a total of 1,224 housing units with 63.6% owner occupied. Education includes 7.4% of residents that are high school graduates and 70.7% with a bachelor's degree or higher. The average temperature in Piermont in the summer is 70 degrees, and in the winter 27 degrees.