Llanarth is a village in Ceredigion, Wales.
It is situated within the SA47 postcode district, which is within the Llanarth post town.
SA47 is the only postcode district within the Llanarth post town.
The Llanarth post town is within the Swansea postcode area.
Administrative Ward: Llanarth
Administrative District: Ceredigion
Country: Wales
UK Parliament: Ceredigion