East Williamston is a village in Pembrokeshire, Wales.
It is situated within the SA70 postcode district, which is within the Tenby post town.
SA70 is the only postcode district within the Tenby post town.
The Tenby post town is within the Swansea postcode area.
Administrative Ward: East Williamston
Administrative District: Pembrokeshire
Country: Wales
UK Parliament: Carmarthen West and South Pembrokeshire