<P> This is a list of principal areas of Wales ordered by population . The figures are estimates for 2016 from the Office for National Statistics . </P> <Table> <Tr> <Th> Rank </Th> <Th> District </Th> <Th> Population </Th> <Th> Population density / km2 </Th> <Th> Style </Th> </Tr> <Tr> <Td> </Td> <Td> Cardiff </Td> <Td> 361,500 </Td> <Td> 2,565 </Td> <Td> City and county </Td> </Tr> <Tr> <Td> </Td> <Td> Swansea </Td> <Td> 244,500 </Td> <Td> 644 </Td> <Td> City and county </Td> </Tr> <Tr> <Td> </Td> <Td> Rhondda Cynon Taf </Td> <Td> 238,300 </Td> <Td> 561 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> </Td> <Td> Carmarthenshire </Td> <Td> 185,600 </Td> <Td> 78 </Td> <Td> County </Td> </Tr> <Tr> <Td> </Td> <Td> Caerphilly </Td> <Td> 180,500 </Td> <Td> 650 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Flintshire </Td> <Td> 154,400 </Td> <Td> 352 </Td> <Td> County </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Newport </Td> <Td> 149,100 </Td> <Td> 782 </Td> <Td> City and county </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Bridgend </Td> <Td> 143,200 </Td> <Td> 571 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Neath Port Talbot </Td> <Td> 141,600 </Td> <Td> 320 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Wrexham </Td> <Td> 136,700 </Td> <Td> 271 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Powys </Td> <Td> 132,200 </Td> <Td> 25 </Td> <Td> County </Td> </Tr> <Tr> <Td> 12 </Td> <Td> Vale of Glamorgan </Td> <Td> 128,500 </Td> <Td> 388 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Pembrokeshire </Td> <Td> 124,000 </Td> <Td> 76 </Td> <Td> County </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Gwynedd </Td> <Td> 123,600 </Td> <Td> 48 </Td> <Td> County </Td> </Tr> <Tr> <Td> 15 </Td> <Td> Conwy </Td> <Td> 116,500 </Td> <Td> 103 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 16 </Td> <Td> Denbighshire </Td> <Td> 94,800 </Td> <Td> 113 </Td> <Td> County </Td> </Tr> <Tr> <Td> 17 </Td> <Td> Monmouthshire </Td> <Td> 92,800 </Td> <Td> 109 </Td> <Td> County </Td> </Tr> <Tr> <Td> 18 </Td> <Td> Torfaen </Td> <Td> 92,100 </Td> <Td> 732 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 19 </Td> <Td> Ceredigion </Td> <Td> 74,100 </Td> <Td> 41 </Td> <Td> County </Td> </Tr> <Tr> <Td> 20 </Td> <Td> Isle of Anglesey </Td> <Td> 69,700 </Td> <Td> 98 </Td> <Td> County </Td> </Tr> <Tr> <Td> 21 </Td> <Td> Blaenau Gwent </Td> <Td> 69,600 </Td> <Td> 640 </Td> <Td> County borough </Td> </Tr> <Tr> <Td> 22 </Td> <Td> Merthyr Tydfil </Td> <Td> 59,800 </Td> <Td> 536 </Td> <Td> County borough </Td> </Tr> </Table> <Tr> <Th> Rank </Th> <Th> District </Th> <Th> Population </Th> <Th> Population density / km2 </Th> <Th> Style </Th> </Tr>

The county in wales that has the highest population
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