National Statistics Postcode Lookup - 2021 Census (November 2024) for the UK

Published by:
Office for National Statistics
Last updated:
11 August 2025
Topic:
Not added
Licence:
None

Summary

This file contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom as at November 2024 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. To download the zip file click the Download button. The NSPL relates both current and terminated postcodes to a range of current statutory geographies via ‘best-fit’ allocation from the 2021 Census Output Areas (national parks and Workplace Zones are exempt from ‘best-fit’ and use ‘exact-fit’ allocations) for England, Wales, Scotland and Northern Ireland. It supports the production of area-based statistics from postcoded data. The NSPL is produced by ONS Geography, who provide geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations. The NSPL is issued quarterly. (File size - 191 MB).

N.B. From the next release (February 2025) this will be known simply as the National Statistics Postcode Lookup (NSPL).

[10/12/2024: Updated to correct county codes for all UAs in England to pseudo code E99999999.]

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