List of Welsh principal areas

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 and density are from the Office for National Statistics 2022 estimates.

Names		Date created	Population	Population density		Area		Style	Administrative centre
English	Welsh	Date created	Population	(/km²)	(/mi²)	(km²)	(mi²)	Style	Administrative centre
Cardiff	Caerdydd	1996	372,089	2,641	6,840	141	54	County, city	Cardiff
Swansea	Abertawe	1996	241,282	639	1,660	378	146	County, city	Swansea
Rhondda Cynon Taf		1996	239,018	564	1,460	424	164	County borough	Pontypridd
Carmarthenshire	Sir Gaerfyrddin	1996	189,117	80	210	2,370	920	County	Carmarthen
Caerphilly	Caerffili	1996	176,130	635	1,640	277	107	County borough	Ystrad Mynach
Newport	Casnewydd	1996	161,506	848	2,200	190	73	County borough, city	Newport
Flintshire	Sir y Fflint	1996	155,319	353	910	440	170	County	Mold
Bridgend	Pen-y-bont ar Ogwr	1996	146,136	583	1,510	251	97	County borough	Bridgend
Neath Port Talbot	Castell-nedd Port Talbot	1996	142,158	322	830	441	170	County borough	Port Talbot
Wrexham	Wrecsam	1996	135,394	269	700	504	195	County borough, city	Wrexham
Powys		1974	133,891	26	67	5,181	2,000	County	Llandrindod Wells
Vale of Glamorgan	Bro Morgannwg	1996	133,492	403	1,040	331	128	County borough	Barry
Pembrokeshire	Sir Benfro	1996	124,367	77	200	1,618	625	County	Haverfordwest
Gwynedd		1974	117,591	46	120	2,535	979	County	Caernarfon
Conwy		1996	114,290	102	260	1,126	435	County borough	Conwy
Denbighshire	Sir Ddinbych	1996	96,558	115	300	837	323	County	Ruthin
Monmouthshire	Sir Fynwy	1996	93,886	111	290	849	328	County	Usk
Torfaen		1996	92,860	739	1,910	126	49	County borough	Pontypool
Ceredigion		1996	71,610	40	100	1,785	689	County	Aberaeron and Aberystwyth
Isle of Anglesey	Ynys Môn	1996	69,049	97	250	712	275	County	Llangefni
Blaenau Gwent		1996	67,014	616	1,600	109	42	County borough	Ebbw Vale
Merthyr Tydfil	Merthyr Tudful	1996	58,883	528	1,370	111	43	County borough	Merthyr Tydfil