Caernarvonshire
| District | Successor |
|---|---|
| Bangor Borough | Arfon |
| Bethesda Urban District | Arfon |
| Betws-y-Coed Urban District | Aberconwy |
| Caernarfon Royal Borough | Arfon |
| Conwy Borough | Aberconwy |
| Criccieth Urban District | Dwyfor |
| Gwyrfai Rural District | Arfon, Dwyfor |
| Llandudno Urban District | Aberconwy |
| Llanfairfechan Urban District | Aberconwy |
| Lleyn Rural District | Dwyfor |
| Nant Conway Rural District | Aberconwy |
| Ogwen Rural District | Arfon |
| Penmaenmawr Urban District | Aberconwy |
| Porthmadog Urban District | Dwyfor |
| Pwllheli Borough | Dwyfor |
Read more about this topic: List Of Rural And Urban Districts In Wales In 1973