Sterling, Virginia is a census-designated place in Loudoun County, Virginia. The population as of the 2010 Census was 27,822.It is located northwest of Herndon, east of Ashburn, and west of Great Falls, and includes part of Dulles International Airport and the former AOL corporate headquarters. Sterling is also home to the National Weather Service Weather Forecast Office (serving the Baltimore-Washington Metropolitan Area), as well as the Sterling Field Support Center, the National Weather Service test, research, and evaluation center for weather instruments.

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