Dunellen is a town located in the New Jersey region of the United States. During the most recent census, Dunellen had a population of 7,227. Dunellen is the 244th most poplulated city in the New Jersey region, the 5,010th most populated city in the United States and the 25,032nd most populated city in the world. Dunellen is in the America/New York timezone which is 4 hours behind UTC. Dunellen adjusts the hour with daylight savings time during the winter months.