Cwmfelin Mynach is a village in Carmarthenshire, Wales.
It is situated within the SA34 postcode district, which is within the Whitland post town.
SA34 is the only postcode district within the Whitland post town.
The Whitland post town is within the Swansea postcode area.
Administrative Ward: Trelech
Administrative District: Carmarthenshire
Country: Wales
UK Parliament: Carmarthen West and South Pembrokeshire