Princeton is located in Johnston county North carolina with a geographic area of 1.1 square miles. The total population in Princeton is 1,396 with 46.3% male and 53.7% female. Children under age 5 represent 12.1% of the population, under age 18 equal 31.9% of the population and over age 65 is 15.6% of the population. The median household income is $31,349, per capita income is $20,913. There are a total of 577 housing units with 40.4% owner occupied. Education includes 22.0% of residents that are high school graduates and 18.5% with a bachelor's degree or higher. The average temperature in Princeton in the summer is 75 degrees, and in the winter 38 degrees.