Tysons Corner, also known simply as Tysons, is an unincorporated census-designated place (CDP) in Fairfax County, Virginia, United States. Part of the Washington Metropolitan Area located in Northern Virginia, Tysons Corner lies between the community of McLean and the town of Vienna along the Capital Beltway (I-495). Companies in the area typically use McLean or Vienna addresses; however, in April 2011, the United States Postal Service approved the use of Tysons Corner as a postal address for the 22102 and 22182 ZIP codes of McLean and Vienna, respectively. The population was 19,627 as of the 2010 census. It is the 12th largest employment center in the United States.
The area is home to Tysons Corner Center – the largest shopping mall in the state and in the Baltimore-Washington area – and two upscale shopping centers, Tysons Galleria (also one of the largest malls in the region) and Fairfax Square, which neighbor it to the north and south respectively. The average household income within a 5 mile (8 km) radius of Tysons Corner Center is $174,809. Every weekday, Tysons Corner draws 55,000 shoppers from around the region.
Tysons Corner has 46 million sq ft (4.3 million m²) of office and retail space as of 2008, making it an important business district in its own right and the classic example of an edge city. As of 2013, Tysons Corner had 14 million sq ft (1.3 million m²) of office and retail space approved or under construction, approximately one-third of a 45 million sq ft backlog of projected urban development in close proximity to the area's four Metro Silver Line stations.
Tysons Corner was one of the inspirations for, and figures prominently in, Joel Garreau's pioneering study of the edge city phenomenon. Among the reasons for calling Tysons Corner an edge city is that, in contrast to typical "bedroom" suburbs, people commute into it in the morning and away from it at night, with a daytime population greater than 100,000 and a nighttime population of fewer than 20,000. That has created a lot of traffic congestion, which local urban planners hope to mitigate by enticing more people to live there, and thus not have to get in their automobiles to get to work if they also can work there. The planned extension of the Washington Metro via the new Silver Line into Tysons Corner will ease access for residents as well. Planners envision up to 200,000 jobs and 100,000 residents in coming decades.