• Details the work to determine the questions in the 2021 Census, and the development of the 2021 Census questionnaire.

  • In April 2017, the Office for National Statistics (ONS) held a large-scale test in several parts of the country in preparation for the next census.

  • Our latest Administrative Data Census Research Output publications.

  • Sets out the initial thinking for the design of the 2021 Census in England and Wales.

  • We are investigating the feasibility of moving to a census based on administrative data after 2021. Learn about our progress and research outputs here.

  • Innovative approaches and new technologies.

  • It's our main priority. Find out how we ensure the security of your data.

  • Find out the latest information on our consultations and access previous consultations.

  • Beyond 2011 programme closed in January 2015. The new Census Transformation Programme (CTP) will develop the 2021 Census.

  • Find out the latest from our Census Transformation Programme, including upcoming events, how to register and contribute.

  • Your questions about the programme and the consultations.

  • Want to talk to us? Here's how.

The Census Transformation Programme (CTP) will ensure its success by making the best use of all available data to enhance the provision of population statistics.

CTP continues the work begun by the Beyond 2011 Programme. Beyond 2011 programme closed in January 2015. This archived content is for reference only. The new Census Transformation Programme (CTP) will develop the 2021 Census.