Princeton, WV has a population of 6,056 and is the 5,729th largest city in the United States. The population density is 2,009 per sq mi which is 2524% higher than the West Virginia average and 2118% higher than the national average. The median age in Princeton is 40 which is approximately 4% lower than the West Virginia average of 42. In Princeton, 55% of the population over 15 years of age are married, 96% speak English and 3% speak Spanish. 74% of Princeton residents were born in West Virginia, 22% were born out of state, 0% were born outside of the United States and 4% were foreign born.