Publications

These statistics contain the first results from Census 2021, estimates in this release were published in rounded form.

The outputs prospectus describes the release plans for Census 2021 statistics in Northern Ireland. The prospectus was last updated on 27 March 2025.

The purpose of this document is to provide an overview of data processing methods for the 2021 Census. 

The outputs consultation launched on 1 October 2021 and closed on 30 November 2021.

Download the 'Assessment of responses received' for the 2021 Census outputs strategy consultation.

This report provides an update on our progress to gain National Statistics accreditation.

Download the 2021 Census Quality Assurance Strategy.

This document outlines the population definitions to be used in Census 2021 in Northern Ireland.

Download the 2021 Census - Topic report on UK Armed Forces Veterans.

Download NISRA's response to the OSR findings from Phase 1 of Census 2021 National Statistics assessment.

Download 'How NISRA is ensuring that Census 2021 will serve the public'.

The responses we received as part of the 2021 census outputs strategy consultation are available to download.

Download the 2021 Census - Proposals Document.

Download the presentation slides from the 2021 Census outputs strategy consultation information event.

Download documents related to the 2021 Census outputs strategy consultation.

To assist with our preparations for Census 2021, NISRA carried out an address check in a number of areas across Northern Ireland in October 2017.

The topic consultation launched on 25 September 2015 and closed on 17 December 2015.Download documents related to the 2021 Census topic consultation.

Download the 'Assessment of responses received - Response to the consultation'.

Download the terms of reference and list of members for the Demographic Statistics Advisory Group (DSAG) in Northern Ireland.

The responses we received as part of the 2021 census topic consultation are available to download.