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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.

Get data

  • Download Census 2021 Grid Square product for Northern Ireland

Product overview

Grid Square statistics allow users to examine trends over time for consistent spatial units, NISRA has made Grid Square statistics available for every census since 1971. The geographic base for these outputs is the Irish Grid, with census statistics produced for 1km and 100m grids.

Supporting information

  • Read our guidance note for more information on the development of the Grid Square product for Census 2021
  • View the full list of variables within the Census 2021 Grid Square product
  • Read our Grid Square products page for background on Grid Squares

Grid Square in GIS format

Digital boundaries for Grid Square are available to download in several formats (ESRI Shapefile, GeoJSON, and Geodatabase):

  • 1km Grid Square
  • 100m Grid Square
  • Combined Grid Square

Grid Square statistics for previous censuses

  • Census 2011 Combined Grid Square product
  • Access data for earlier grid square outputs (1971, 1981, 1991, and 2001) through the UK Data Service

Please note you will have to register with the UK Data Service to access this data.

Last updated: 03 March 2025

Related to Grid Square

Publications

  • Census 2021 Grid Square product for Northern Ireland

    Published 14 December 2023
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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