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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 outlines the planned release schedule for Census 2021 statistics in Northern Ireland. The prospectus was last updated on 8 August 2024.
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.