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Dewis pwnc arall neu clirio pob hidlydd.
Nid yw holl gynnwys y cyfrifia wedi'i ryddhau. Edrychwch am ddatganiadau sydd i ddod ar y calendr datganiadau. Fel arall, gallwch greu set ddata eich fun.
Rhyddhawyd ar: 02 June 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 27 May 2022 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 10 October 2023 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 main language (detailed) data.
Rhyddhawyd ar: 25 September 2023 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 proficiency in English language data.
Rhyddhawyd ar: 25 July 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 26 June 2020 | Gwybodaeth gorfforaethol
In this section, you’ll find information on development and testing towards meeting user need for information on ethnic group, national identity, religion and language.
Rhyddhawyd ar: 22 June 2022 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 28 November 2023 | Gwybodaeth gorfforaethol
Definition of proficiency in English language, categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Rhyddhawyd ar: 26 October 2023 | Methodoleg
Quality information affecting Welsh language data from Census 2021 to help correctly interpret them.
Use these groups of categories to research and analyse Census 2021 Welsh language skills data.
