Prince William Medical Center
Manassas is an independent city in the Commonwealth of Virginia. As of the 2010 census, the population was 37,821. The city is surrounded by Prince William County and the independent city of Manassas Park. Manassas surrounds the 38-acre county courthouse, but that county property is not part of the city. The City of Manassas has several important historic sites from the period 1850 to 1870. The City of Manassas is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area and is situated in the Northern Virginia region.