Introduction to the 2001 Census in Northern Ireland, including information on the design, definitions and questionnaires.

This section includes information relating to the background of the 2001 Census.

Methodology documents

Our 2001 Census methodology documents provide an overview of the 2001 Census process, as well as further information on the publicity campaign, community liaison, confidentiality, consulting the public, disclosure control, enumeration, legislation and the One Number Census.


Sample copies of the 2001 Census questionnaires.

Definitions document

This report provides comprehensive information on the 2001 Census Definitions used in products and statistical outputs.