The UK Census is conducted every ten years. The most recent census took place in 2021. The data collected from the census is typically processed and published in stages over the following years. For example, initial results from the 2021 Census were released in 2022, with more detailed data sets and analyses being published subsequently.

In addition to the decennial census, the UK also gathers demographic and social data through other surveys and estimates, such as the Annual Population Survey and the Labour Force Survey, which provide more frequent updates on certain aspects of the population.

For more detailed and specific information, you can visit the Office for National Statistics (ONS) website, which is responsible for conducting the census in England and Wales.