The census happens only once every 10 years. It gives us the most accurate estimate of all the people and households in Northern Ireland.
The last census in Northern Ireland took place on 21 March 2021.
Try our Flexible Table Builder to create your own custom Census 2021 tables.
Related statistics
2011 Census
Information on the 2011 Census in Northern Ireland, including how to access the data and supporting documents.
2001 and earlier censuses
This section relates to Northern Ireland census reports since 1926. Most publications were produced on paper and are only available online as a PDF document.