The Office for National Statistics (ONS) has published Census 2021 data on housing, communal establishments and people with second addresses in three separate bulletins.
Mae’r Swyddfa Ystadegau Gwladol (SYG) wedi cyhoeddi data Cyfrifiad 2021 ynghylch tai, sefydliadau cymunedol a phobl sydd ag ail gyfeiriad mewn tri bwletin ar wahân.