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).
Information about Census 2021 statistics, and supporting materials.
Related statistics
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.
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.
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. The prospectus was last updated on 19 December 2024.