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As the demand increases for statistics and data to measure the impact of the COVID-19 pandemic, we have had to change our data gathering and release practices, focussing efforts on priority analysis and statistics.

Data Provider: Welsh Government National Statistics 'Ability to Speak Welsh' & 'Speaking Welsh at Home', as assessed by parents, of pupils aged 11-15 in secondary schools by year

The data mainly represents parents perceptions of their children’s fluency and will not necessarily be the same as the ability shown by the pupil in their school work.

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Ability to speak Welsh[Filter]
Speaking Welsh at home[Filtered]
Click here to sort2007/08Click here to sort2008/09Click here to sort2009/10Click here to sort2010/11Click here to sort2011/12Click here to sort2012/13Click here to sort2013/14Click here to sort2014/15Click here to sort2015/16Click here to sort2016/17Click here to sort2017/18Click here to sort2018/19Click here to sort2019/20
[Collapse]Can speak Welsh but not fluentlySpeaks Welsh at home3,1303,0352,5402,4902,2552,1552,2702,2552,1902,0752,0951,9902,095
Does not speak Welsh at home59,00061,27062,56064,60564,03061,45560,69555,89551,79549,44546,30045,43546,245
Not applicable / cannot speak Welsh*......3,6658,51510,78514,83519,17519,270
[Collapse]Cannot speak WelshSpeaks Welsh at home.............
Does not speak Welsh at home*............
Not applicable / cannot speak Welsh89,45584,21079,74074,48070,76568,46063,91561,98559,53057,50056,91551,99052,285
[Collapse]Fluent in WelshSpeaks Welsh at home15,56515,30015,31015,02014,54514,12013,78513,31512,68012,50512,30012,58512,680
Does not speak Welsh at home11,44511,72512,06012,25512,63012,63512,61012,67012,70012,90012,54512,92012,670
Not applicable / cannot speak Welsh.......60155285320600720
[Collapse]Information not obtainedSpeaks Welsh at home.............
Does not speak Welsh at home.*15351853954802103040202035
Not applicable / cannot speak Welsh.7601,6902,2553,7953,6254,0754,3904,6805,0804,5904,6755,020


'Ability to Speak Welsh' & 'Speaking Welsh at Home', as assessed by parents, of pupils aged 11-15 in secondary schools by year

Last update
11/06/2020 11/06/2020

Next update
July 2021

Publishing organisation
Welsh Government

Source 1
Pupil Level Annual School Census (PLASC), Welsh Government

Contact email

National Statistics

Lowest level of geographical disaggregation

Geographical coverage

Languages covered
English and Welsh

Data licensing
You may use and re-use this data free of charge in any format or medium, under the terms of the Open Government License - see

General description
See other items

Data collection and calculation
Schools’ data are derived from the Pupil Level Annual School Census (PLASC) returns and STATS 1 returns supplied by schools open on Census day in January each year. The returns are authorised by headteachers and validated by Local Authorities.

Frequency of publication

Data reference periods
From 2007/08 or more recently if the data item is not available for earlier years.

Rounding applied
* = Pupil numbers greater than zero but less than five. Pupil numbers have been rounded to the nearest 5.

Statistical quality
School Census returns are authorised by headteachers and validated by Local Authorities.

Whilst most of the usual data validation processes on the 2020 school census data have taken place, due to the coronavirus pandemic, the data did not undergo the usual final validation process. As part of the Welsh Local Government Finance Settlement, the data is usually returned to local authorities for final validation. Typically, overall numbers of pupils and teachers will not change significantly during this period, with the most likely change being in the characteristics of the pupils themselves e.g. free school meal entitlement. Users should therefore be more cautious when comparing data on characteristics of pupils and staff over time, in particular where small cohorts are involved.