Do we need another census?
Millions of people will be asked about their education, jobs, health and ethnicity in the project which is expected to cost £482m and create 35,000 jobs.
Census director said the data collected was invaluable to allow local and central government, businesses and voluntary groups to plan their service provision, but campaign group Big Brother Watch says it is a "very intrusive" way of simply duplicating information already available.
Is a census necessary? Is it too intrusive? What information do you think is important? Are some questions too sensitive to ask? Have you taken part in a census?
Thank you for your comments. This debate is now closed.