This dataset provides 2011 estimates that classify usual residents aged 3 and over in Wales by Welsh language skills. The estimates are as at census day, 27 March 2011.

This information helps Welsh public bodies understand the extent to which the Welsh language is used. It is also used for policy development and monitoring and provides data for the allocation of grants to support the Welsh language.

Similar information from the 2001 Census was provided in table UV84

In order to protect against disclosure of personal information from the 2011 Census, there has been swapping of records in the Census database between different geographic areas, and so some counts will be affected. In the main, the greatest effects will be at the lowest geographies, since the record swapping is targeted towards those households with unusual characteristics in small areas.

More details on the ONS Census disclosure control strategy may be found on the Statistical Disclosure Control page on the ONS web site.