Post Office – Downpatrick, Annacloy – Opening Hours & Branch Details Post Office lies at 41 Annacloy Road, about 2.54 miles north-west of the centre of Downpatrick (near to Down Business Park and Blackwater Integrated College). The branch provides service primarily to the locales of Annacloy, Castlewellan, Ballynahinch, Ballyrenan, Dunnanelly, Newcastle and Magheracranmoney. Doors are open here today (Friday) from 9:00 am – 1:00 pm. Opening times, local directions or phone number for Post Office Downpatrick, Annacloy can be found here.