Falls Church is a county seat located in the Virginia region of the United States. During the most recent census, Falls Church had a population of 12,332. Falls Church is the 86th most poplulated city in the Virginia region, the 3,379th most populated city in the United States and the 18,683rd most populated city in the world. Falls Church is in the America/New York timezone which is 4 hours behind UTC. Falls Church adjusts the hour with daylight savings time during the winter months.