Stanhope is located in Sussex county New jersey with a geographic area of 1.8 square miles. The total population in Stanhope is 3,327 with 43.1% male and 56.9% female. Children under age 5 represent 6.8% of the population, under age 18 equal 24.7% of the population and over age 65 is 13.7% of the population. The median household income is $96,489, per capita income is $42,014. There are a total of 1,227 housing units with 80.4% owner occupied. Education includes 22.2% of residents that are high school graduates and 48.4% with a bachelor's degree or higher. The average temperature in Stanhope in the summer is 73 degrees, and in the winter 34 degrees.