Census Day 2021 is 21st March.
You will have received a letter through the post providing a personal Census ID which you should use to reach teh Census form on the Government website.
It is possible to fill in a paper-based census form instead - details of how to do this will be in your letter.
The Government website is at www.census.gov.uk
Click here to view more information from the Goivernment about the census.