Rank	District	Population	Population density/km²	Styleand
1	Cardiff	362,800	2,574	City and county
2	Swansea	245,500	646	City and county
3	Rhondda Cynon Taf	239,100	563	County borough
4	Carmarthenshire	186,500	78	County
5	Caerphilly	180,800	651	County borough
6	Flintshire	155,200	354	County
7	Newport	151,500	795	City and county
8	Bridgend	144,300	575	County borough
9	Neath Port Talbot	142,100	321	County borough
10	Wrexham	135,600	269	County borough
11	Powys	132,500	25	County
12	Vale of Glamorgan	130,700	394	County borough
13	Pembrokeshire	124,700	77	County
14	Gwynedd	123,700	48	County
15	Conwy	116,900	103	County borough
16	Denbighshire	95,200	113	County
17	Monmouthshire	93,600	110	County
18	Torfaen	92,300	734	County borough
19	Ceredigion	73,100	40	County
20	Isle of Anglesey	69,800	98	County
21	Blaenau Gwent	69,600	640	County borough
22	Merthyr Tydfil	60,000	537	County borough