page_title: Arlington County, Virginia
section_title: Landmarks
hierarchical_section_title: Arlington County, Virginia / Landmarks
caption_attribution_description: English: Honorary Marine Daran Wankum, third from left, salutes during a wreath laying ceremony at the Marine Corps War Memorial in Arlington, Va, June 13, 2013. Wankum, who began the Marine enlistment process but was unable to start recruit training due to an illness, was recognized as the 22nd honorary Marine during a ceremony June 11, 2013.
context_page_description: 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, of which it was once a part. The county is coterminous with the U.S. Census Bureau's census-designated place of Arlington. Arlington is considered to be the second-largest "principal city" of the Washington metropolitan area.
  In 2019, the county's population was estimated at 236,842, making Arlington the sixth-largest county in Virginia by population; if it were incorporated as a city, Arlington would be the fourth most-populous city in the state. With a land area of 26 square miles, Arlington is the geographically smallest self-governing county in the U.S., and by reason of state law regarding population density, it has no incorporated towns within its borders. It is the 5th highest-income county in the U.S. by median family income.
  Arlington is home to the Pentagon, Reagan National Airport, and Arlington National Cemetery.
caption: Iwo Jima Memorial
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