This is a list of the 22 principal areas of Wales giving their most recent date of creation and the style by which they are known.
| Names | Style | Date created | Land area | Population (2024) | Density | Administrative centre | |||
|---|---|---|---|---|---|---|---|---|---|
| English | Welsh | (km2) | (mi2) | (/km2) | (/mi2) | ||||
| Isle of Anglesey | Ynys Môn | County | 1996 | 712 | 275 | 69,097 | 97 | 250 | Llangefni |
| Blaenau Gwent | County borough | 1996 | 109 | 42 | 67,873 | 624 | 1,620 | Ebbw Vale | |
| Bridgend | Pen-y-bont ar Ogwr | County borough | 1996 | 251 | 97 | 147,530 | 588 | 1,520 | Bridgend |
| Caerphilly | Caerffili | County borough | 1996 | 277 | 107 | 176,865 | 638 | 1,650 | Ystrad Mynach |
| Cardiff | Caerdydd | County, city | 1996 | 141 | 54 | 383,919 | 2,724 | 7,060 | Cardiff |
| Carmarthenshire | Sir Gaerfyrddin | County | 1996 | 2,370 | 920 | 190,800 | 80 | 210 | Carmarthen |
| Ceredigion | County | 1996 | 1,785 | 689 | 72,599 | 41 | 110 | Aberaeron and Aberystwyth | |
| Conwy | County borough | 1996 | 1,126 | 435 | 114,891 | 102 | 260 | Conwy | |
| Denbighshire | Sir Ddinbych | County | 1996 | 837 | 323 | 98,202 | 117 | 300 | Ruthin |
| Flintshire | Sir y Fflint | County | 1996 | 440 | 170 | 155,867 | 354 | 920 | Mold |
| Gwynedd | County | 1974 | 2,535 | 979 | 120,813 | 48 | 120 | Caernarfon | |
| Merthyr Tydfil | Merthyr Tudful | County borough | 1996 | 111 | 43 | 58,972 | 529 | 1,370 | Merthyr Tydfil |
| Monmouthshire | Sir Fynwy | County | 1996 | 849 | 328 | 94,930 | 112 | 290 | Usk |
| Neath Port Talbot | Castell-nedd Port Talbot | County borough | 1996 | 441 | 170 | 143,249 | 325 | 840 | Port Talbot |
| Newport | Casnewydd | County borough, city | 1996 | 190 | 73 | 167,899 | 882 | 2,280 | Newport |
| Pembrokeshire | Sir Benfro | County | 1996 | 1,618 | 625 | 125,761 | 78 | 200 | Haverfordwest |
| Powys | County | 1974 | 5,181 | 2,000 | 135,059 | 26 | 67 | Llandrindod Wells | |
| Rhondda Cynon Taf | County borough | 1996 | 424 | 164 | 242,844 | 573 | 1,480 | Pontypridd | |
| Swansea | Abertawe | County, city | 1996 | 378 | 146 | 251,304 | 666 | 1,720 | Swansea |
| Torfaen | County borough | 1996 | 126 | 49 | 94,119 | 749 | 1,940 | Pontypool | |
| Vale of Glamorgan | Bro Morgannwg | County borough | 1996 | 331 | 128 | 135,743 | 410 | 1,100 | Barry |
| Wrexham | Wrecsam | County borough, city | 1996 | 504 | 195 | 138,245 | 274 | 710 | Wrexham |
See also
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