Census 2021: An opportunity to acknowledge multilingualism

As four researchers in Linguistics working in the UK, we have sent a letter to the UK statistics authority, calling for a review of the wording of the question about languages in the next census. If you would like to support our campaign, please consider sending a similar letter to the UK Statistics Authority, and share a copy with us at mlm@manchester.ac.uk, or write to us to express your support. Please also view the attached documentation.

Question on language in 2011 census in England and Wales

Professor Yaron Matras

Professor Yaron Matras

University of Manchester

Dr Thomas H Bak

Dr Thomas H Bak

University of Edinburgh

Dr Mark Sebba

Dr Mark Sebba

University of Lancaster

Professor Wendy Ayres-Bennett

Professor Wendy Ayres-Bennett

University of Cambridge

Read our open letter to the UK Statistics Authority


Sir David Norgrove

Chair, UK Statistics Authority

1 Drummond Gate

London, SW1V 2QQ


5 March 2018


Question on Language in 2021 Census


Dear Sir David,

We write as university researchers with an interest and expertise in the UK’s language diversity.

The 2011 national censuses were the first to contain a question about language other than questions about the indigenous Celtic languages, which were asked in earlier censuses. This acknowledged the country’s language diversity, giving the government and the public an opportunity to assess language needs, to take an inventory of valuable language skills, and to gain a better understanding of a key element of the country’s cultural fabric.

However, the way the question was asked was based on the assumption that one person can only speak one ‘main’ language (or, in the Scottish version, just one language other than English at home). Accordingly, it did not allow participants to name different languages. The division into ‘main language’ versus English does not reflect the diversity and complexity of the current linguistic landscape in the UK. Research has found that many respondents under-reported their use of languages other than English, as the question ‘What is your main language?’ could be interpreted in different ways: Some interpreted ‘main language’ as the language they know best, others as the language they use most frequently, and others still as the language they feel most attached to emotionally.

We are aware that the ONS trialled a number of alternative questions before deciding on the ‘main language’ question (for England and Wales) and could not find a satisfactory question that allowed multiple languages in the response. Nevertheless we think that relatively small changes to the question, allowing for more than one language to be reported, would greatly improve the quality of the data and its usefulness. We believe that what is desirable is a question which would not force the respondents to choose between English and another language (e.g. their heritage or community language) and would allow them to name more than one language apart from English. We know of a number of countries that have successfully implemented such questions in their national censuses, in a variety of ways.

We would be pleased to discuss these and other options with officials from the Statistics Authority and provide any assistance required.


Professor Yaron Matras, University of Manchester

Dr Thomas H. Bak, University of Edinburgh

Dr Mark Sebba, University of Lancaster

Professor Wendy Ayres-Bennett, University of Cambridge

Census question on languages in other countries

Click on the images below to see examples of census questions on languages in other countries:


Australia census 2011

Canada census 2016

South Africa census 2011








US census 2010

Ireland census 2016

New Zealand census 2013