Post Office – Armagh, Irish Street – Opening Hours & Branch Details Post Office is currently located on Supermarket And Filling Station, a 0.56 mile distance south-west of the centre of Armagh (by Palace Demesne Public Park and Christian Brothers’ Primary School Armagh). The branch is fittingly located for patrons from Cargagh, Milford, Lurgyvallen, Umgola, Legarhill, Farmacaffly, Ballynahone Beg and Armagh City Centre. If you’d like to stop by today (Friday), its opening hours are from 9:00 am to 6:30 pm. This page includes operating times, address info or customer experience for Post Office Armagh, Irish Street.