Home to the best college in the country, according to U.S. News & World Report, Princeton is located in Mercer county, right in the center of our state. The population is approximately 30,000, and it is both one of the oldest and newest towns in New Jersey. How is that possible? Though Princeton predates the Revolutionary War, it was established in its current state in 2013 when Princeton Township and the Borough of Princeton merged. Here are just a few reasons why everyone should love Princeton. Full Story Here.