Princeton junction is located in Mercer county New jersey with a geographic area of 1.8 square miles. The total population in Princeton junction is 1,989 with 55.4% male and 44.6% female. Children under age 5 represent 6.3% of the population, under age 18 equal 17.7% of the population and over age 65 is 20.4% of the population. The median household income is $228,357, per capita income is $99,501. There are a total of 886 housing units with 78.0% owner occupied. Education includes 5.3% of residents that are high school graduates and 87.9% with a bachelor's degree or higher. The average temperature in Princeton junction in the summer is 73 degrees, and in the winter 34 degrees.
