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|Politics of Wales|
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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.
The population, density and areas are estimates for 2019 from the Office for National Statistics.
|Cardiff||1996 a||369,202||2,585||140||County (also a city)|
|Swansea||1996 a||246,563||649||378||County (also a city)|
|Rhondda Cynon Taf||1996||241,873||566||424||County borough|
|Newport||1996 a||156,447||805||190||County borough (also a city)|
|Neath Port Talbot †||1996||144,386||324||442||County borough|
|Vale of Glamorgan||1996||135,295||399||335||County borough|
|Gwynedd *||1974 b||125,171||49||2,535||County|
|Conwy ‡||1996||118,184||104||1,130||County borough|
|Isle of Anglesey||1996 a||70,440||98||714||County|
|Blaenau Gwent||1996||70,020||641||109||County borough|
|Merthyr Tydfil||1996 a||60,424||540||111||County borough|
* = Named as 'Caernarfonshire and Merionethshire' in legislation. Named changed by the council.
† = Named as 'Neath and Port Talbot' in legislation. Named changed by the council.
‡ = Named as 'Aberconwy and Colwyn' in legislation. Named changed by the council.
§ = Named as 'Cardiganshire' in legislation. Named changed by the council.
a = re-instated as a principal administrative authority after a gap
b = boundaries significantly altered in 1996 from its previous incarnation