The SA9 1 Ystradgynlais Postcode Sector
The SA9 1 postcode sector stands on the Powys and West Glamorgan border in Wales.
SA9 1 is a postcode sector within the SA9 postcode district which is within the SA Swansea postcode area.
The Royal Mail delivery office for the SA9 1 postal sector is the Ystalyfera Delivery Office.
The area of the SA9 1 postcode sector is 34.28 square miles which is 88.80 square kilometres or 21,941.92 square acres.
Map of the SA9 1 Postcode Sector
Explore the sa9 1 postcode sector by using our free interactive map.