Annandale is a city located in the Virginia region of the United States. During the most recent census, Annandale had a population of 41,008. Annandale is the 29th most poplulated city in the Virginia region, the 1,026th most populated city in the United States and the 8,065th most populated city in the world. Annandale is in the America/New York timezone which is 4 hours behind UTC. Annandale adjusts the hour with daylight savings time during the winter months.