Gwynedd

Unitary authority in Wales

Coordinates:	52.89, -4.12
OS grid ref:	SH 57 34

Gwynedd is a largely rural unitary authority in north‑west Wales, occupying much of the mountainous heart of Snowdonia National Park and an indented, island‑studded coastline. It contains Yr Wyddfa (Mount Snowdon), dramatic glacial valleys, the Llyn Peninsula and estuaries, and historic landmarks such as Caernarfon Castle and the slate workings around Blaenau Ffestiniog, parts of the Slate Landscape of Northwest Wales World Heritage Site.

Culturally and socially Gwynedd is one of the strongest Welsh‑speaking areas in the country, with town centres like Bangor and small villages sustaining language and traditional music, eisteddfodau and community life. Its economy is built on tourism, agriculture and forestry, with lingering slate and maritime industries centred on ports such as Porthmadog; balancing conservation, local services and rural livelihoods is an ongoing challenge for the area.

Gwynedd postcode districts

LL23, LL35, LL36, LL37, LL38, LL39, LL40, LL41, LL42, LL43, LL44, LL45, LL46, LL47, LL48, LL49, LL51, LL52, LL53, LL54, LL55, LL56, LL57

Most populated places in Gwynedd

Places in Gwynedd

Abersoch Built-up area
Bala Parish
Bangor Built-up area
Barmouth Built-up area
Bethesda Built-up area
Blaenau Ffestiniog Built-up area
Bontnewydd Built-up area
Caernarfon Built-up area
Chwilog Built-up area
Criccieth Built-up area
Dolgellau Built-up area
Fairbourne Built-up area
Groeslon Built-up area
Harlech Built-up area
Llan Ffestiniog Built-up area
Llanbedrog Built-up area
Llanberis Built-up area
Llanrug Built-up area
Llwyngwril Built-up area
Morfa Nefyn Built-up area
Mynytho Built-up area
Nefyn Built-up area
Penrhyndeudraeth Built-up area
Penygroes Built-up area
Porthmadog Built-up area
Pwllheli Built-up area
Tal-y-bont Built-up area
Talysarn Built-up area
Trawsfynydd Built-up area
Tregarth Built-up area
Tywyn Built-up area
Y Felinheli Built-up area