Census 2021

The census is carried out by the Office for National Statistics and takes place every ten years. Census day is Sunday 21 March, and census forms need to be completed on that day or as soon as possible afterwards. You must complete the census by law. If you do not, or if you supply false information, you could be fined up to £1,000.

You can complete the census online or you can complete a paper census questionnaire.

To complete the census online, you need a unique access code. This will be sent to you by post. If it does not arrive, or if you mislay it, you can request a new access code by going to https://census.gov.uk and scrolling down the page to If you don’t have an access code. There is other useful information about the census on that page.

You do not have to complete the census online. You can request a paper census questionnaire by phoning the free helpline 0800 141 2021 or by going to https://census.gov.uk and scrolling down to If you want to fill out a paper census. Alternatively, you can ask someone you trust to order a paper questionnaire for you.

It is all right for someone you trust, like a family member or friend, to help you to complete the census, either online or on paper.