In Brecon Beacons and Pembrokeshire Coast, the household population is projected to increase, by 1,100 (3.3%) and 500 (2.3%) respectively.
Amcanestynnir y bydd cynnydd ym mhoblogaeth aelwydydd ym Mannau Brycheiniog o 3.3% (ychydig dros 1,100) a chynnydd o 2.3% (500) yn Arfordir Penfro.