Llanberis is a village in Gwynedd, Wales.

It is situated within the LL55 postcode district, which is within the Caernarfon post town.

The full list of postcode districts within the Caernarfon post town is as follows:

The Caernarfon post town is within the Llandudno postcode area.

Key data for Llanberis:

Administrative Ward: Llanberis

Administrative District: Gwynedd

Country: Wales

UK Parliament: Arfon

A map showing the location of Llanberis within the LL55 postcode district