There will also be figures showing the evolution of the population since the last census in 2011.

More than 20 million households across Wales and England completed census questionnaires in the spring of last year, with a record 89% of responses completed online.

This provided “extremely high quality” data, according to Jen Woolford, director of health, population and methods transformation at the ONS.

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“The data will give us a crucial baseline from which to measure changes in our society, which will help us understand changing needs,” she added.

“Understanding the population and its characteristics during the Covid-19 pandemic was important and early census data has already been used to learn about uptake of vaccines by occupation and to support the response to the Russian invasion of Ukraine.

The census takes place across the UK every 10 years and provides the most accurate estimate of all people and households in the country.

Its results are used by a range of organisations, including governments, councils and businesses, and underpin everything from calculating economic growth and unemployment to planning for schools, health services and transport links. transport.

The 2021 census data for Wales and England will be released in stages over the next two years, the ONS said.

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Upcoming releases will include figures on ethnicity, religion, labor market, education and housing, as well as – for the first time – information on veterans of the British Armed Forces, sexual orientation and gender identity.

The first results of the 2021 census in Northern Ireland were released on Tuesday by the Northern Ireland Statistics and Research Agency.

It showed the population on census day – March 21, 2021 – was a record 1,903,100, down from 92,200 or 5% since 2011.

People aged 65 and over made up 17.2% of Northern Ireland’s population last year, up sharply from 14.6% in 2011, while the equivalent figure for those aged 40 to 64 fell from 31.7% to 32.4%.

By contrast, those aged 15 to 39 made up 31.2% of Northern Ireland’s population in 2021, down over the decade from 34.2%, while the figure for children aged 14 and less went from 19.6% to 19.2%. .

In Scotland, the census is run by the National Records of Scotland and has been delayed for a year due to the Covid-19 pandemic. Data collection is still ongoing and the first results are expected in 2023.

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