Vienna is a town in Fairfax County, Virginia, United States, and a suburb of Washington, D.C. As of the 2020 U.S. census, Vienna had a population of 16,562. It was first settled by Europeans in the mid-18th century. In 1861, the Battle of Vienna, one of the earliest American Civil War battles, was fought in Vienna. The Vienna Town Council, which governs the town, is composed of a mayor and six councilmembers. The town's education is served mainly by Fairfax County Public Schools.