Average GPS coordinates for Llannon Postcode location: 51.755, -4.118. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Llannon on map:

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Listing cities & postcodes (1):
>> Carmarthenshire, SA14 Llannon, Wales, GPS coordinates: 51.7552,-4.1175