Porthmadog, Gwynedd, Wales, UK
Also/previously known as: Porthmadoc, Caernarfonshire, Wales, UK
Final Anglicised 'c' of name changed to official Welsh version ending in 'g' in 1974.
| Contest | Events at Venue |
|---|---|
| Portmadoc Eisteddfod | 2 |
| National Eisteddfod of Wales (Class D) | 1 |
| National Eisteddfod of Wales (Class C) | 1 |