Statistical information on the Welsh language skills of people in Wales: There are currently two main sources for Welsh language data - the decennial Census and the Annual Population Survey providing less detail but more frequent annual updates. The APS estimates of Welsh language ability are historically considerably higher than those produced by the Census. Potential reasons for this are explored in a research paper by ONS.
|2011 Census: First results on the Welsh language (external link)|
|Research paper by the Office for National Statistics (external link)|
|National Survey for Wales results, 2012-13: Welsh language|