Census 2021: National Identity

Below you will find selected national statistics from Census 2021 for Wales and for local authority areas. 

National identity at local authority and MSOA level


ONS has issued a useful interactive maps where you can check numbers and proportions of diverse groups by Local Authority areas and smaller areas called MSOA’s. The map is a useful tool and you can use it below.


Local Authority and smaller areas: UK, Non-UK, Welsh, British, English


Local Authority and smaller areas: Detailed national identities



National Identity in Wales: UK vs. Non-UK

  • 5.4% of usual residents in Wales chose at least one non-UK national identity (up from 3.8% in 2011). Within this group 4.2% of the population did not associate with any UK identity (up from 3.4% in 2011)


Source: Census 2021


National Identity in Wales: UK identities

  • 1.7 million people in Wales identified with a “Welsh” only identity (55.2% of the population, down from 57.5% in 2011).
  • The areas with the largest percentages of “Welsh” only identity included Merthyr Tydfil (70.0%), Rhondda Cynon Taf (69.8%), and Caerphilly (69.2%), while Flintshire (34.7%) had the smallest proportion.


Source: Census 2021


Largest non-UK identities

Source Census 2021




Where can I find and analyse the Census 2021 data?

If you want to analyse the data yourself, use Census website or the ‘query data’ function on Nomis website.

How can I use this data?

If you are interested in finding out more about how this data can be used as part of your organisation’s equality monitoring or customer profiling:

Need further information or advice, contact

Tai Pawb

Members Helpline


029 2105 7957


Please note the material in this section is for information purposes only and does not constitute legal advice. Tai Pawb is not responsible for the content of external resources.