Llansaint is a village in Carmarthenshire, Wales.
It is situated within the SA17 postcode district .
The SA17 postcode district lies within the following post towns:
The SA17 postcode district is within the Swansea" postcode area.
Administrative Ward: St. Ishmael
Administrative District: Carmarthenshire
Country: Wales
UK Parliament: Carmarthen East and Dinefwr