![](https://www.vaco.org/wp-content/uploads/PrinceWilliam-county-seal.jpg)
![](https://www.vaco.org/wp-content/uploads/PrinceWilliam-county-seal.jpg)
County Courthouse
![](https://www.vaco.org/wp-content/uploads/2022/09/PrinceWilliam16.png)
County Details
County Seat: Manassas
Year Organized: 1731
Total Square Miles: 335
2020 Population: 482,204
Persons/Square Mile: 1,438
County Structure
Government Type: County
Authority: Dillon’s Rule
Legislative Body: Board of Supervisors
Size of Legislative Body: 8