Mae’r wybodaeth hon ar gael yn ôl oedran a rhyw, ar gyfer pob un o awdurdodau lleol Cymru. Ochr yn ochr â’r wybodaeth hon cyhoeddir nifer amcangyfrifedig y cartrefi, dwysedd y boblogaeth a newidiadau mewn poblogaeth a chartrefi dros amser. Mae setiau data ystadegol sy’n sail i’r datganiad cyntaf hefyd wedi’u cyhoeddi ar wefan yr ONS, ynghyd â gwybodaeth a dadansoddiadau eraill.
This information is available by age and by sex, for each of the local authorities in Wales. Published alongside this information is the estimated number of households, population density and changes in population and households over time. Statistical datasets underlying the first release have also been published on the ONS website, along with other analysis and information.