The census is a survey that happens every 10 years and gives a picture of all the people and households in England and Wales. The census takes place on Sunday 21 March 2021. Your answers to the census questions will help organisations make decisions on planning and funding public services in your area, including transport, education and healthcare.Every household should complete the census on Sunday 21 March 2021 or as soon as possible after. If you’ve responded before 21 March and things have changed, please call free on 0800 141 2021 to correct.