The third phase of main statistics results from Census 2021 are now available.
The population of Northern Ireland on census day, 21 March 2021, was 1,903,175. While the number of households in Northern Ireland was 768,810.
Information on Census 2021 in Northern Ireland.
Related statistics
Outputs prospectus
This prospectus sets out the release plans for Census 2021 statistics in Northern Ireland. The prospectus was last updated on 21 March 2023.
Reference materials
These materials are designed to help users make the most of census data.
Background
Information on consultations and the planning of the 2021 Census in Northern Ireland.