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Population and household estimates

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

The population estimates in the 24 May 2022 release were published rounded to the nearest 100 because at that time the dataset was still being subjected to a number of final statistical procedures. The statistics in ‘Census 2021 main statistics for Northern Ireland (phase 1)’ reflect the final database.

Release: Census 2021 population and household estimates for Northern Ireland

Publication date: 24 May 2022 (rounded)

Published data

  • View all 12 tables (Excel 228 KB)

Related information

  • Read the statistical bulletin that accompanied this release
  • Our scrollytelling article shows how the population of Northern Ireland has changed over time
  • For further supporting information, including a quality assurance report, visit the release page
  • Find census outputs definitions for terms used in this release
  • We answer some frequently asked questions from this release

Release contents

  • population of Northern Ireland by age and sex
  • household and communal establishment population of Northern Ireland
  • number of households for Northern Ireland

Additional releases

Census 2021 person and household estimates for Data Zones in Northern Ireland

Publication date: 21 February 2023

Published data

  • Person and household estimates for Data Zones in Northern Ireland

Related information

  • Our census area explorer application has been updated with data from this release
  • Read our information papers to find out how Data Zones and Super Data Zones have been developed, and how other Northern Ireland geographies can be approximated
  • Users can download digital boundaries for:
    • Data Zones
    • Super Data Zones

Release contents

This release comprised person and household estimates for Data Zones, Super Data Zones, and District Electoral Areas in Northern Ireland.

Census 2021 person and household estimates for settlements

Publication date: 18 December 2023

Published data

  • Person and household estimates for settlements

Release contents

This table provides the person and household estimates for settlements in Northern Ireland that contain at least 50 usual residents or 20 households.

Census 2021 person and household estimates for postcodes in Northern Ireland

Publication date: 29 February 2024

Published data

  • Person and household estimates for postcodes

Release contents

This release includes Census 2021 estimates of usual residents, by sex, and households for unit level postcodes, postcode sectors and districts in Northern Ireland.

Last updated: 03 March 2025

Related to Population and household estimates

Publications

  • Census 2021 person and household estimates for postcodes in Northern Ireland

    Published 29 February 2024
  • Census 2021 person and household estimates for settlements

    Published 18 December 2023
  • Census 2021 person and household estimates for Data Zones in Northern Ireland

    Published 21 February 2023
  • Census 2021 main statistics demography tables – age and sex

    Published 22 September 2022
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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