List of Welsh principal areas by population
Table:
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

Referring to the table titled List of Welsh principal areas by population, section , respond to this question in a short sentence: What are the two most populous areas in Wales? Provide just your answer in a JSON object {"answer": "YOUR ANSWER"}.

answer: Swansea is the second most populous area in Wales, after Cardiff.