LL - Llandudno
The postal area LL (Llandudno) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within LL - Llandudno
| Country | Post Town | Postal District |
| Wales | Wrexham | LL11 LL12 LL13 LL14 |
| Ruthin | LL15 | |
| Denbigh | LL16 | |
| St. Asaph | LL17 | |
| Rhyl | LL18 | |
| Prestatyn | LL19 | |
| Llangollen | LL20 | |
| Corwen | LL21 | |
| Abergele | LL22 | |
| Bala | LL23 | |
| Betws-y-Coed | LL24 | |
| Dolwyddelan | LL25 | |
| Llanrwst | LL26 | |
| Trefriw | LL27 | |
| Colwyn Bay | LL28 LL29 |
|
| Llandudno | LL30 | |
| Llandudno Junction | LL31 | |
| Conwy | LL31 LL32 |
|
| Llanfairfechan | LL33 | |
| Penmaenmawr | LL34 | |
| Aberdovey | LL35 | |
| Tywyn | LL36 | |
| Fairbourne | LL38 | |
| Arthog | LL39 | |
| Dolgellau | LL40 | |
| Blaenau Ffestiniog | LL41 | |
| Barmouth | LL42 | |
| Talybont | LL43 | |
| Dyffryn Ardudwy | LL44 | |
| Llanbedr | LL45 | |
| Harlech | LL46 | |
| Talsarnau | LL47 | |
| Penrhyndeudraeth | LL48 | |
| Porthmadog | LL49 | |
| Gardolbenmaes | LL51 | |
| Criccieth | LL52 | |
| Pwllheli | LL53 | |
| Caernarfon | LL54 LL55 |
|
| Port Dinorwic | LL56 | |
| Bangor | LL57 | |
| Beaumaris | LL58 | |
| Menai Bridge | LL59 | |
| Gaerwen | LL60 | |
| Llanfair PG | LL61 | |
| Bodorgan | LL62 | |
| Tycroes | LL63 | |
| Rhosneigr | LL64 | |
| Holyhead | LL65 | |
| Rhosgoch | LL66 | |
| Cemaes Bay | LL67 | |
| Amlwch | LL68 | |
| Penysarn | LL69 | |
| Dulas | LL70 | |
| Llanerchymedd | LL71 | |
| Meolfre | LL72 | |
| Marianglas | LL73 | |
| Tynygongl | LL74 | |
| Pentraeth | LL75 | |
| Llanbedrgoch | LL76 | |
| Llangefni | LL77 |
