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
Maryland in the American Revolution capital of the colonies when the Second Continental Congress met there during December 1776 to February 1777, after Philadelphia had been threatened with occupation by the British "Redcoats". Towards the end of the struggle, from November 26, 1783, to June 3, 1784, the state's capital Annapolis, briefly served as the capital of the fledgling confederation government (1781-1789) of the United States of America, and it was in the Old Senate Chamber of the Maryland State House on State Circle in Annapolis that General George Washington famously resigned his commission as commander in chief of the Continental Army on December 23,