Princeton is located in Mercer county West virginia with a geographic area of 3.0 square miles. The total population in Princeton is 5,740 with 49.4% male and 50.6% female. Children under age 5 represent 5.7% of the population, under age 18 equal 20.2% of the population and over age 65 is 24.5% of the population. The median household income is $41,925, per capita income is $22,211. There are a total of 2,544 housing units with 54.6% owner occupied. Education includes 37.3% of residents that are high school graduates and 20.8% with a bachelor's degree or higher. The average temperature in Princeton in the summer is 68 degrees, and in the winter 32 degrees.
