County Armagh Northern Ireland Top Things to See and Do County Armagh (named after its county town, Armagh) is one of the thirty-two counties of Ireland and one of six counties of Northern Ireland. County Armagh is known as the “Orchard County” because of its many apple orchards. The county is part of the historic province of Ulster. Armagh is Northern Ireland’s smallest county but it offers quite a bit to the visitor. Here are some of the things you will experience when visiting County Armagh -