page_title: Prince William County, Virginia
hierarchical_section_title: Prince William County, Virginia
caption_attribution_description: English: July 2011 photograph of Prince William County Courthouse in Manassas, Virginia, taken with a Canon camera.
context_page_description: Prince William County is a county on the Potomac River in the Commonwealth of Virginia in the United States. As of the 2010 census, the population was 402,002, on July 1, 2019, the population was estimated to be 470,335, making it Virginia's second-most populous county. Its county seat is the independent city of Manassas.
  A part of Northern Virginia, Prince William County is part of the Washington metropolitan area. In 2019 it had the 20th-highest income of any county in the United States.
context_section_description: Prince William County is a county on the Potomac River in the Commonwealth of Virginia in the United States. As of the 2010 census, the population was 402,002, on July 1, 2019, the population was estimated to be 470,335, making it Virginia's second-most populous county. Its county seat is the independent city of Manassas.
  A part of Northern Virginia, Prince William County is part of the Washington metropolitan area. In 2019 it had the 20th-highest income of any county in the United States.
caption: The Prince William County Courthouse in Manassas in July 2011
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