2011 Census - Frequently Asked Questions

Date published: 31 March 2016


A selection of the most frequently asked questions to help you find out more about the 2011 Census.


Frequently asked questions include:

  • Who runs the Census?
  • How successful was the 2011 Census?
  • What is the timetable for census outputs?
  • What are the arrangements to produce a combined population figure for the UK?
  • What percentage of people filled in their questionnaire online and was this percentage in line with NISRA expectations?
  • Is it safe, secure and confidential?
  • Why do you release the data in batches?

Terms used in this document are explained in the 2011 Census Definitions and Output Classification document.