Arlington County is a county of about 210,000 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the southwest of Washington, D.C.^[1] In 2005 Arlington was ranked first among walkable cities in the United States by the American Podiatric Medical Association.^[3] CNN Money ranked Arlington as the most educated city in 2006 with 35.7% of residents having held graduate degrees. In October 2008, BusinessWeek ranked Arlington as the safest city in which to weather a recession, with a 49.4% share of jobs in 'strong industries'.^[4] In July 2009, CNN Money ranked Arlington second in the country in its listing of "Best Places for the Rich and Single." ^[5] Along with five other Northern Virginia counties, Arlington ranked among the twenty U.S. counties with the highest median household income in 2006.^[6]

Arlington is the location of Arlington National Cemetery, Reagan National Airport, the Pentagon, Fort Myer, the Pentagon Memorial, the USMC War Memorial, the Air Force Memorial, and numerous other monuments.

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