List of built-up areas in Wales by population
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This is a list of localities in Wales by population according to the 2016 estimate data, by the Office for National Statistics[1] Major urban areas are sub-divided to provide results about localities within them. Sub-divisions often follow the boundaries of local authorities existing before re-organisation in 1974, or the boundaries of current authorities within agglomerations. The figures in this list include only single localities or subdivisions; they are not the population of local authority areas, electoral wards, or urban areas.
Urban Areas
The following is a list of Larger Urban Areas with a population greater than 10,000:
| Rank | LUA | Population 2016 | Definition (Built up Areas) | Region |
|---|---|---|---|---|
| 1 | Cardiff | 521,000 | Cardiff and South Wales Valleys | |
| 2 | Newport | 306,844 | Newport and Torfaen | |
| 3 | Swansea | 300,352 | Swansea, Neath, Port Talbot, Pontardawe, Ystradgynlais, Gowerton, Upper Killay | South West |
| 4 | Wrexham | 65,692 | Wrexham, Rhostyllen, Bradley, Gwersyllt, Brymbo | North East |
| 5 | Buckley | 63,576 | Buckley, Shotton, Connah's Quay, Sandycroft, Deeside Industrial Park, Northop Hall | North East |
| 6 | Tonypandy | 62,545 | Tonypandy, Porth, Rhondda, Treorchy, Treherbert, Tylorstown | South East |
| 7 | Bridgend | 58,380 | Bridgend, Sarn, Trelales | South East |
| 8 | Barry | 54,673 | Barry | South East |
| 8 | Deeside | 53,568 | Connah's Quay, Shotton, Hawarden, Ewloe, Queensferry, Mancot | North East |
| 9 | Llanelli | 49,591 | Llanelli, Llangennech, Pwl | South West |
| 10 | Rhyl/Prestatyn | 46,267 | Rhyl, Prestatyn, Dyserth, Meliden | North East |
| 11 | Merthyr Tydfil | 43,820 | Merthyr Tydfil | South East |
| 12 | Colwyn Bay | 34,284 | Colwyn Bay, Old Colwyn, Rhos-on-Sea, Mochdre | North East |
| 13 | Ebbw Vale | 33,068 | Ebbw Vale, Brynmawr, Nantyglo, Blaina | South East |
| 14 | Aberdare | 31,135 | Aberdare, Fernhill | South East |
| 15 | Flint | 26,442 | Flint, Holywell, Walwen, Gorsedd | North East |
| 16 | Rhosllanerchrugog | 25,362 | Rhosllanerchrugog, Penycae, Cefn-Mawr, Ruabon, Trevor | North East |
| 17 | Ammanford | 23,709 | Ammanford, Pen-y-Groes, Tumble, Tycroes, Penybanc, Saron | South West |
| 18 | Church Village | 23,277 | Church Village, Beddau, Efail Isaf | South East |
| 19 | Maesteg | 21,001 | Maesteg, Croeserw, Cymmer | South East |
| 20 | Aberystwyth | 18,749 | Aberystwyth, Llanbadarn Fawr | Mid |
| 21 | Kinmel Bay/Abergele | 18,705 | Kinmel Bay, Abergele, Towyn | North East |
| 22 | Bangor | 17,988 | Bangor, Penrhosgarnedd | North West |
| 23 | Carmarthen | 15,854 | Carmarthen | South West |
| 24 | Porthcawl | 15,672 | Porthcawl | South East |
| 25 | Llandudno | 15,371 | Llandudno | North West |
| 26 | Tredegar | 14,855 | Tredegar | South East |
| 27 | Haverfordwest | 14,596 | Haverfordwest | South West |