The SA4 0 postcode sector stands on the Dyfed and West Glamorgan border in Wales.
SA4 0 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 0 postal sector is the Gorseinon Delivery Office.
The area of the SA4 0 postcode sector is 6.74 square miles which is 17.45 square kilometres or 4,311.20 square acres.
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