Spotswood is a town located in the New Jersey region of the United States. During the most recent census, Spotswood had a population of 8,257. Spotswood is the 214th most poplulated city in the New Jersey region, the 4,550th most populated city in the United States and the 23,339th most populated city in the world. Spotswood is in the America/New York timezone which is 4 hours behind UTC. Spotswood adjusts the hour with daylight savings time during the winter months.