Twynmynydd is located in the county of Dyfed, Wales, three miles north-east of the town of Ammanford, 13 miles north of the major city of Swansea, 40 miles north-west of Cardiff, and 165 miles west of London. Twynmynydd lies two miles north of the West Glamorgan border, and was historically in the county of Carmarthenshire. Twynmynydd falls within the unitary authority of Sir Gaerfyrddin - Carmarthenshire. It is in the SA18 postcode district. The post town for Twynmynydd is Ammanford.
Twynmynydd is in the ceremonial county of Dyfed, the historic county of Carmarthenshire, and the administrative county of Sir Gaerfyrddin - Carmarthenshire.
Ceremonial County | Dyfed |
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Historic County | Carmarthenshire |
Administrative County | Sir Gaerfyrddin - Carmarthenshire |
Twynmynydd is situated towards the southernmost extremity of Dyfed, and towards the easternmost extremity of Dyfed.
The nearest postcode to the centre of Twynmynydd is SA18 2YR.
Twynmynydd is situated roughly centrally between the southernmost and northernmost extremities of the SA18 postcode district, and roughly centrally between the easternmost and westernmost extremities of the SA18 postcode district.
The post town for Twynmynydd is Ammanford. Twynmynydd is in the SA18 postcode district, which corresponds to the post town of Ammanford.
The centre of Twynmynydd is located at position 51.81374° latitude and -3.93708° longitude.
Latitude | 51.81374° |
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Longitude | -3.93708° |
The centre of Twynmynydd is located at the grid reference easting 266566 and northing 214565 within the British National Grid (OSGB36) system.
Easting | 266566 |
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Northing | 214565 |
Position of Twynmynydd relative to nearby towns. Distance is measured from the centre of Twynmynydd to the centre of the town.
Position of Twynmynydd relative to nearby cities. Distance is measured from the centre of Twynmynydd to the centre of the city.