Trenton, New Jersey Trenton, New Jersey Trenton is the capital city of the U.S. state of New Jersey and the county seat of Mercer County. It was briefly the capital of the United States. The city's metropolitan area is grouped with the New York metropolitan area by the United States Census Bureau, but directly borders the Philadelphia metropolitan area and is part of the Philadelphia Combined Statistical Area and the Federal Communications Commission's Philadelphia Designated Market Area. As of the 2010 United States Census, Trenton had a population of 84,913, making it the state's 10th-most-populous municipality. The Census Bureau estimated that the city's
Law of New Jersey Law of New Jersey The law of New Jersey consists of several levels, including constitutional, statutory, regulatory, case law, and local law. The Constitution of New Jersey is the foremost source of state law. Legislation is enacted by the New Jersey Legislature, published in the "Laws of New Jersey", and codified in the "New Jersey Statutes". State agency regulations (sometimes called administrative law) are published in the "New Jersey Register" and codified in the "New Jersey Administrative Code". New Jersey's legal system is based on common law, which is interpreted by case law through the decisions of the Supreme Court,