Dwygyfylchi is a village in Conwy County Borough, Wales.
It is situated within the LL34 postcode district, which is within the Penmaenmawr post town.
LL34 is the only postcode district within the Penmaenmawr post town.
The Penmaenmawr post town is within the Llandudno postcode area.
Administrative Ward: Capelulo
Administrative District: Conwy
Country: Wales
UK Parliament: Aberconwy