FOI reference: FOI-2026-3512

You asked

Please provide the most recent, cumulative, 16-21 year old Great Britain (GB) or UK population data available broken down by date (e.g. Dec 2025), age (e.g. Age 16) and Country (e.g. England).

The most important data are the cumulative counts broken down by age and the date of the data, so if GB or UK country break down is unavailable please provide the other requested data.

We said

Thank you for your request. 

Please find 2024 Population Estimates in the associated download, which are the most recent official population estimates we hold at this level of detail. 

The data supplied is broken down by: 

  • Single year of age (16 to 21 highlighted) 

  • Geography, including:  

    • England 
    • Wales 
    • Scotland 
    • Northern Ireland 
    • Great Britain 
    • United Kingdom 

The data has been downloaded from Nomis, the Office for National Statistics (ONS) official labour market and population statistics service. Nomis is run by Durham University on behalf of ONS. 

If you have any queries regarding population estimates or ONS data, please contact pop.info@ons.gov.uk who will be able to help.