Ammanford is a town and community in Carmarthenshire, Wales, with a population of 5,411 at the 2011 census. It is a former coal mining town. The built-up area had a population of 7,945. Ammanford is served by the A483 and A474 roads. Ammanford railway station is a stop on the Heart of Wales Line, with trains to Llanelli and Swansea to the south and Shre…Ammanford is a town and community in Carmarthenshire, Wales, with a population of 5,411 at the 2011 census. It is a former coal mining town. The built-up area had a population of 7,945. Ammanford is served by the A483 and A474 roads. Ammanford railway station is a stop on the Heart of Wales Line, with trains to Llanelli and Swansea to the south and Shrewsbury to the north.