 In 1990, Accokeek officially became a CDP when the US Census Bureau defined the place's boundaries.In 2008, eight people were killed in an illegal street race.Accokeek is located in the Southern United States, in Southern Maryland, and approximately from Washington, D.C.. To the north, Accokeek borders the CDPs of Fort Washington and Clinton; to the east, it borders the CDP of Brandywine; to the south, it borders the CDPs of Bryans Road, Bensville, and Waldorf, all of which are located in Charles County; and to the west, it borders the Potomac River, which flows into the Chesapeake Bay.