Loudoun County is located in the Commonwealth of Virginia and is part of the Washington Metropolitan Area. As of 2019, the population of Loudoun County was estimated to be 413,538. The county seat is Leesburg.

Loudoun County is governed by a nine-member Board of Supervisors, elected by district. The Board of Supervisors is responsible for setting policy and enacting laws for the county. The county is also served by a Constitutional Officer, the Sheriff, who is elected county-wide.

The county is divided into seven magisterial districts, each represented by a supervisor. The county is also served by a Commonwealth's Attorney, Clerk of the Circuit Court, Commissioner of the Revenue, and Treasurer, all of whom are elected county-wide.

Loudoun County is home to Dulles International Airport, which is the busiest airport in the Washington Metropolitan Area. The county is also home to several major employers, including the federal government, the Loudoun County Public Schools system, and several technology companies.

For the most up-to-date and in-depth information, please check the public records links below.