Arlington County, Virginia area. The county is situated in Northern Virginia on the southwestern bank of the Potomac River directly across from Washington, D.C., of which it was once a part. With a land area of , Arlington is the geographically smallest self-governing county in the U.S., and by reason of state law regarding population density, has no incorporated towns within its borders. Due to the county's proximity to downtown Washington, D.C., Arlington is home to many important installations for the capital region and U.S. government, including the Pentagon, Reagan National Airport, and Arlington National Cemetery. Many schools and universities have campuses in
Court House, Arlington, Virginia Court House, Arlington, Virginia Courthouse is a transit-oriented neighborhood in Arlington County, Virginia. It is home to the Court House stop on the Orange Line and the Silver Line of the Metrorail subway system. Although Arlington is so geographically small that it does not have component towns or cities, the Courthouse neighborhood is sometimes referred to as county seat, as it is home to the primary county government administrative complex as well as a justice center consisting of a jail, courthouse and police HQ. Indeed, the neighborhood gets its name from the governmental uses that call it home. The neighborhood