Raritan is a town located in the New Jersey region of the United States. During the most recent census, Raritan had a population of 6,881. Raritan is the 256th most poplulated city in the New Jersey region, the 5,183rd most populated city in the United States and the 25,658th most populated city in the world. Raritan is in the America/New York timezone which is 4 hours behind UTC. Raritan adjusts the hour with daylight savings time during the winter months.