Auburn is a city located in the Washington region of the United States. During the most recent census, Auburn had a population of 70,180. Auburn is the 13th most poplulated city in the Washington region, the 508th most populated city in the United States and the 5,099th most populated city in the world. Auburn is in the America/Los Angeles timezone which is 7 hours behind UTC. Auburn adjusts the hour with daylight savings time during the winter months.