Search
Close this search box.

The Voice of the

Commonwealth's Counties

Arlington County

County Courthouse
County Details

County Seat: Arlington

Year Organized: 1801

Total Square Miles: 26

2020 Population: 238,643

Persons/Square Mile: 9,180

County Structure

Government Type: County

Authority:  Dillon’s Rule

Legislative Body: Board of Supervisors

Size of Legislative Body: 5

County Links