Llandanwg is a village in Gwynedd, Wales.
It is situated within the LL46 postcode district, which is within the Harlech post town.
LL46 is the only postcode district within the Harlech post town.
The Harlech post town is within the Llandudno postcode area.
Administrative Ward: Llanbedr
Administrative District: Gwynedd
Country: Wales
UK Parliament: Dwyfor Meirionnydd