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Where is Merthyr?

Merthyr is located in the county of Dyfed, Wales, four miles west of the town of Carmarthen, 26 miles north-west of the major city of Swansea, 59 miles north-west of Cardiff, and 185 miles west of London. Merthyr was historically in the county of Carmarthenshire. Merthyr falls within the unitary authority of Sir Gaerfyrddin - Carmarthenshire. It is in the SA33 postcode district. The post town for Merthyr is Carmarthen.

Merthyr on a map

Map showing extent of Merthyr as bounding box
Bounding box showing extent of Merthyr
Map showing location of Merthyr within the UK
Location of Merthyr within the UK

Which county is Merthyr in?

Merthyr is in the ceremonial county of Dyfed, the historic county of Carmarthenshire, and the administrative county of Sir Gaerfyrddin - Carmarthenshire.

Ceremonial CountyDyfed
Historic CountyCarmarthenshire
Administrative CountySir Gaerfyrddin - Carmarthenshire

Where is Merthyr in Dyfed?

Merthyr is situated towards the southernmost extremity of Dyfed, and roughly centrally between the easternmost and westernmost extremities of Dyfed.

Map showing location of Merthyr within Dyfed
Location of Merthyr within Dyfed

What is the postcode for Merthyr?

The nearest postcode to the centre of Merthyr is SA33 5EG.

Where is Merthyr in SA33?

Merthyr is situated roughly centrally between the southernmost and northernmost extremities of the SA33 postcode district, and roughly centrally between the easternmost and westernmost extremities of the SA33 postcode district.

Map showing location of Merthyr within SA33
Location of Merthyr within SA33

What is the post town for Merthyr?

The post town for Merthyr is Carmarthen. Merthyr is in the SA33 postcode district, which corresponds to the post town of Carmarthen.

What is the latitude and longitude of Merthyr?

The centre of Merthyr is located at position 51.86185° latitude and -4.39487° longitude.

Latitude51.86185°
Longitude-4.39487°

What is the easting and northing of Merthyr?

The centre of Merthyr is located at the grid reference easting 235189 and northing 220853 within the British National Grid (OSGB36) system.

Easting235189
Northing220853

What are the nearest towns to Merthyr?

Position of Merthyr relative to nearby towns. Distance is measured from the centre of Merthyr to the centre of the town.

west
4m
Merthyr is 4 miles west of Carmarthen
north-east
5m
Merthyr is 5 miles north-east of St Clears
north-east
7m
Merthyr is 7 miles north-east of Laugharne
north
9m
Merthyr is 9 miles north of Kidwelly
east
10m
Merthyr is 10 miles east of Whitland
south
13m
Merthyr is 13 miles south of Newcastle Emlyn
south
13m
Merthyr is 13 miles south of Llandysul
north-west
14m
Merthyr is 14 miles north-west of Burry Port
east
16m
Merthyr is 16 miles east of Narberth
north-west
16m
Merthyr is 16 miles north-west of Llanelli

What are the nearest cities to Merthyr?

Position of Merthyr relative to nearby cities. Distance is measured from the centre of Merthyr to the centre of the city.

north-west
26m
Merthyr is 26 miles north-west of Swansea
east
37m
Merthyr is 37 miles east of St Davids
north-west
59m
Merthyr is 59 miles north-west of Cardiff
west
63m
Merthyr is 63 miles west of Newport
west
73m
Merthyr is 73 miles west of Hereford
west
82m
Merthyr is 82 miles west of Bristol
north-west
87m
Merthyr is 87 miles north-west of Exeter
north-west
88m
Merthyr is 88 miles north-west of Wells
west
92m
Merthyr is 92 miles west of Gloucester
west
94m
Merthyr is 94 miles west of Bath