The Roman Catholic Diocese of Arlington (Latin: Dioecesis Arlingtonensis) is a diocese of the Roman Catholic Church in the mid-atlantic United States. The Diocese of Arlington comprises 69 parishes located in the 21 northern-most counties within the Commonwealth of Virginia, including the Northern Virginia counties of Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick, King George, Lancaster, Loudoun, Madison, Northumberland, Orange, Page, Prince William, Rappahannock, Richmond, Shenandoah, Spotsylvania, Stafford, Warren and Westmoreland, and cities of Alexandria, Fairfax, Falls Church, Fredericksburg, Manassas, Manassas Park, and Winchester. Bishop Paul S. Loverde was the ordinary of the Diocese of Arlington until October 2016. His residence is on the grounds of the Cathedral of Sa