Skip to main content
Northern Ireland Statistics and Research Agency

Main navigation

  • Home
  • Statistics and Research
  • Release Calendar
  • Selected for a survey
  • About Us

2001 Census - Definitions Volume

Date published: 08 July 2004

Statistics: 2001 Census

This report provides definitions and other explanatory information for published results from the 2001 Census.

It provides comprehensive information on:

  • definitions and classifications used in the 2001 Census
  • details of differences in the data collected in the different parts of the UK
  • notes on changes from 1991
  • background information on Census processes and geography

a full listing of the statistical tables forming the standard output from the 2001 Census

Documents

  • Chapter 1 - Introduction Adobe PDF (86 KB)
  • Chapter 2 - Census methodology, processing and geography Adobe PDF (129 KB)
  • Chapter 3 - Population base Adobe PDF (50 KB)
  • Chapter 4 - Comparability with the 1991 Census Adobe PDF (86 KB)
  • Chapter 5 - Glossary Adobe PDF (120 KB)
  • Chapter 6 - Part 1 - Output classifications Adobe PDF (2 MB)
  • Chapter 6 - Part 2 - Standard derived variables Adobe PDF (421 KB)
  • Chapter 7 - Filters Adobe PDF (493 KB)
  • Chapter 8 - Output tables Adobe PDF (142 KB)
  • Chapter 9 - Reference maps Adobe PDF (2 MB)

Help viewing documents

Last updated: 03 March 2025

Links

  • Official Statistics producer – Upholding Trust, Quality and Value
  • General Register Office - registration and certification of life events relating to births, deaths and marriages
  • nidirect.gov.uk – the official government website for Northern Ireland citizens
  • Website feedback

Follow NISRA

  • Facebook
  • X
  • YouTube

Footer

  • © Crown Copyright
  • Terms and conditions
  • Cookies
  • Privacy
  • Accessibility Statement