The SA4 6 postcode sector is within the county of West Glamorgan in Wales.
SA4 6 is a postcode sector within the SA4 postcode district which is within the SA Swansea postcode area.
The Royal Mail delivery office for the SA4 6 postal sector is the Gorseinon Delivery Office.
The area of the SA4 6 postcode sector is 1.47 square miles which is 3.80 square kilometres or 938.39 square acres.
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