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Results

Information about Census 2021 statistics, and supporting materials.

Try our Flexible Table Builder to create your own custom Census 2021 tables. Data for new parliamentary constituencies just added.

Our statistical practice is regulated by the Office for Statistics Regulation (OSR).

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Flexible Table Builder

Use our Flexible Table Builder to create your own custom Census 2021 tables.

Area explorer

We have updated our census area explorer to include more data for District Electoral Areas, Super Data Zones and Data Zones.

Main statistics

Main Statistics (MS) tables provide summary statistics for the majority of census questions and topics.

Population and household estimates

These first results from Census 2021 provide the usual resident population and number of households in Northern Ireland.

Grid Square

Census 2021 Grid Square product provides basic census statistics for a combination of 1 kilometre and 100-metre grid squares in Northern Ireland.

Microdata products

Microdata consists of small data samples representing entire households and individuals.

Origin-destination

Origin-destination data show the movement of people from one location to another. They are also known as flow data.

Alternative populations

Statistics are available for two alternative populations: daytime population and workplace population.

Census output geography

Understanding census statistical output geography.

Commissioned outputs

Census 2021 commissioned outputs are produced in response to user requests.

Quality notes, issues and corrections

Details of quality notes, issues, and corrections to published Census 2021 data.

Revisions and corrections policy

Outlines the revisions and corrections policy for census outputs.

Outputs prospectus

This prospectus outlines the planned release schedule for Census 2021 statistics in Northern Ireland.

Related to Results

Publications

  • Census 2021 NISRA Flexible Table Builder project evaluation

    Published 04 April 2025
  • CT0138 Selected occupations by selected age bands by sex and religion or religion brought up in

    Published 24 March 2025
  • CT0137 Dependent children in household indicator - NIMDM2017 Deciles

    Published 25 February 2025
  • CT0136 Lone parents aged 16 to 74 by sex and dependent child in family indicator

    Published 20 February 2025
See all publications in this topic

Links

  • Official Statistics producer – Upholding Trust, Quality and Value
  • General Register Office - registration and certification of life events relating to births, deaths and marriages
  • nidirect.gov.uk – the official government website for Northern Ireland citizens
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