List of Welsh principal areas by population

Population in Wales is concentrated in the north-east and the valleys of the south; the rural mid and west areas of Wales are sparsely populated

This is a list of principal areas of Wales ordered by population. The figures are estimates for 2022 from the Office for National Statistics.

Rank	District	Population	Population density/km²	Style
align="center"	Cardiff	align="center"	align="center"	City and county
align="center"	Swansea	align="center"	align="center"	City and county
align="center"	Rhondda Cynon Taf	align="center"	align="center"	County borough
align="center"	Carmarthenshire	align="center"	align="center"	County
align="center"	Caerphilly	align="center"	align="center"	County borough
align="center"	Flintshire	align="center"	align="center"	County
align="center"	Newport	align="center"	align="center"	City and county
align="center"	Bridgend	align="center"	align="center"	County borough
align="center"	Neath Port Talbot	align="center"	align="center"	County borough
align="center"	Wrexham	align="center"	align="center"	County borough
align="center"	Powys	align="center"	align="center"	County
align="center"	Vale of Glamorgan	align="center"	align="center"	County borough
align="center"	Pembrokeshire	align="center"	align="center"	County
align="center"	Gwynedd	align="center"	align="center"	County
align="center"	Conwy	align="center"	align="center"	County borough
align="center"	Denbighshire	align="center"	align="center"	County
align="center"	Monmouthshire	align="center"	align="center"	County
align="center"	Torfaen	align="center"	align="center"	County borough
align="center"	Ceredigion	align="center"	align="center"	County
align="center"	Isle of Anglesey	align="center"	align="center"	County
align="center"	Blaenau Gwent	align="center"	align="center"	County borough
align="center"	Merthyr Tydfil	align="center"	align="center"	County borough