Arlington County is a county in the Commonwealth of Virginia, often referred to simply as Arlington or Arlington, Virginia. The county is situated in Northern Virginia on the southwestern bank of the Potomac River directly across from the District of Columbia. Due to the county’s proximity to downtown Washington, D.C., Arlington is home to the Pentagon, Reagan National Airport, and Arlington National Cemetery. In academia, the county contains George Mason University’s Antonin Scalia Law School, the administrative offices buildings and graduate programs for the Schar School of Policy and Government and School for Conflict Analysis and Resolution, as well as satellite campuses of the University of Virginia and Virginia Tech. It will soon house the co-headquarters of Amazon.com, Inc.
In 2002, Arlington received the EPA’s National Award for Smart Growth Achievement for “Overall Excellence in Smart Growth.” A number of the county’s residential neighborhoods and larger garden-style apartment complexes are listed in the National Register of Historic Places and/or designated under the County government’s zoning ordinance as local historic preservation districts. Many of Arlington County’s neighborhoods participate in the Arlington County government’s Neighborhood Conservation Program (NCP). Arlington ranks fourth in the nation, immediately after Washington, D.C. itself, for park access and quality in the 2018 ParkScore ranking of the top 100 park systems across the United States, according to the ranking methodologies of the nonpartisan Trust for Public Land.