Ashburn is a city located in the Virginia region of the United States. During the most recent census, Ashburn had a population of 43,511. Ashburn is the 22nd most poplulated city in the Virginia region, the 950th most populated city in the United States and the 7,706th most populated city in the world. Ashburn is in the America/New York timezone which is 4 hours behind UTC. Ashburn adjusts the hour with daylight savings time during the winter months.