The Rosslyn-Ballston corridor is the most densely populated area of Arlington, Virginia.
The dense Rosslyn-Ballston corridor is a series of five "urban villages" following Wilson and Clarendon Boulevards west from Rosslyn, just across the Potomac from Georgetown. This area has seen massive redevelopment since the 1980s. While Rosslyn is largely offices and hotels, and depopulated at night, the pricey high-rises and group houses to the west are home to the largest concentration of restaurants, bars, and entertainment in Arlington— and to the young professionals who patronize them. The corridor is literally a textbook case of transit-oriented development, with the thriving neighborhoods of Courthouse, Clarendon, Virginia Square, and Ballston clustered around their eponymous Orange/Silver Line Metrorail stations. At the center is the shopping and restaurant district of Clarendon, which was Arlington's "downtown" until the 1960s.