Washington County, Maryland Washington County, Maryland Washington County is located in the western part of the U.S. state of Maryland. As of the 2010 census, the population was 147,430. Its county seat is Hagerstown. Washington County was the first county in the United States to be named for the Revolutionary War general (and later President) George Washington. Washington County is one of three Maryland counties recognized by the Appalachian Regional Commission as being part of Appalachia. The county borders southern Pennsylvania to the north, Northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west. Washington County
Capital Beltway station trains (the future MARC Penn Line) began stopping at Capital Beltway; the nearby Lanham and Landover stations were closed. Amtrak and Conrail abandoned Capital Beltway on October 30, 1983, in favor of nearby New Carrollton, which had been a Washington Metro stop since 1978. Capital Beltway station Capital Beltway was a railway station in Lanham, Maryland. It was built in 1970 by the Penn Central Transportation Company in partnership with the state of Maryland, the United States Department of Transportation (DOT), and Prince George's County. The station was located on the Northeast Corridor approximately north of Union Station in Washington,