Date published:
Statistics:
Census 2021 reference materials
Download the Census 2021 edit and imputation processing report.
Overview
To ensure Census 2021 data for Northern Ireland was accurate, complete, and consistent, NISRA applied a rigorous edit and imputation process.
This involved correcting missing or inconsistent responses using internationally recognised methods helping to maintain realistic household structures and high data quality. The result is a trusted dataset that supports effective public policy and planning.
Read the full report to learn more about how this process worked in detail.