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
Arlington County Police Department Arlington County Police Department The Arlington County Police Department (ACPD) is the primary law enforcement agency servicing 207,627 people within of jurisdiction within Arlington County, Virginia. The ACPD was created on February 1, 1940 as the Arlington County Division of Police with Harry Woodyard as the first Chief of Police. It assumed its current name on October 1, 1963 after a departmental reorganization. On February 1, 1940, the first Arlington County policing department was formed, under the name of the "Arlington County Division of Police". A few years later, the first ACPD auxiliary force was created. In 1960, Arlington County