Duvall is a town located in the Washington region of the United States. During the most recent census, Duvall had a population of 6,695. Duvall is the 147th most poplulated city in the Washington region, the 5,268th most populated city in the United States and the 25,991st most populated city in the world. Duvall is in the America/Los Angeles timezone which is 7 hours behind UTC. Duvall adjusts the hour with daylight savings time during the winter months.