Postcode to OA (2021) to LSOA to MSOA to LAD (August 2025) Best Fit Lookup in the UK

Published by:
Office for National Statistics
Last updated:
25 November 2025
Topic:
Not added
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Summary

A best-fit lookup between postcodes, 2021 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and local authority districts (LAD). Postcodes are as at August 2025 in the UK and are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 22 MB). 

Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA21CD, LSOA21CD, MSOA21CD, LADCD, LSOA21NM, MSOA21NM, LADNM, LADNMW 

Field Types - All Text 

Field Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

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