Loudoun County, Virginia, one of the fastest-growing counties in the United States, operates under the framework of federal and state law while also having local ordinances tailored to the needs of its residents. Located in Northern Virginia near Washington, D.C., Loudoun is governed by the Virginia Constitution, the Code of Virginia, and the county’s own regulations passed by the Board of Supervisors. These laws shape daily life in areas such as zoning, public safety, family matters, and business operations.