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Initial findings from a data-linking project which explores differences between estimates of Welsh language ability in Census 2021 and household surveys. This publication is a product of a joint workplan between the Welsh Government and Office for National Statistics (ONS) to improve our understanding of Welsh language statistics.

In April 2023, the Welsh Government and the Office for National Statistics (ONS) published a joint workplan. This workplan outlines the work we are planning to undertake during 2023-24 and beyond to improve our understanding of the main survey and administrative data sources used to produce statistics about the Welsh language. The workplan was accompanied by a blog published by the Welsh Government's Chief Statistician.

This statistical article shares initial findings from the first of six projects outlined in the workplan. 


Datasets and interactive tools

Estimates of Welsh language ability in Census 2021 and household surveys , file type: ODS, file size: 15 KB

15 KB
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Cian SiƓn (Welsh Government) and Rob Doherty (Office for National Statistics)

Rydym yn croesawu gohebiaeth yn Gymraeg / We welcome correspondence in Welsh.


Telephone: 0300 025 8099

Rydym yn croesawu galwadau yn Gymraeg / We welcome calls in Welsh.