Wales was split up into Unitary Authorities (I think in the late 90s). Your original list is based on the previous set of admimistrative counties, many of which have now been split, although Powys (where I live) and Gwynedd (covering a smaller area) remain in name. Somebody will probably correct me (and you can check on www.wales.gov.uk), but here is my stab at the Unitaries of Wales: Cardiff, Swansea, Newport, Bridgend, Vale of Glamorgan, Monmouthshire, Rhondda Cynon Taff, Neath Port Talbot, Blaenau Gwent, Torfaen, Merthyr Tydfil, Caerphilly, Carmarthenshire, Pembrokeshire, Ceredigion, Powys, Flintshire, Denbighshire, Gwynedd, Conwy and Anglesey - I must have missed one or two ... somebody will no doubt correct me! I said it was complicated, especially when the Post Office official addresses still often refer to the former counties, i.e. Gwent, Dyfed...