This file is a best fit lookup between 2021 middle layer super output areas, electoral wards/divisions and local authority districts in England and Wales as at 1st May 2025. (File Size - 1.56 MB) Field Names - MSOA21CD, MSOA21NM, MSOA21NMW, WD25D, WD25NM, WD25NMW, LAD25CD, LAD25NM, LAD25NMWField Types - Text, Text, Text, Text, Text, Text, Text, Text, TextField Lengths - 9, 39, 28, 9, 53, 45, 9, 35, 24 Name change for E07000083 - Tewkesbury to North Gloucestershire revoked This file published on 24th July 2025 is updated on 12th December 2025 to correct ward allocation of:MSOA21 E02004415 being reassigned to Ward (WD25) (E05011636) instead of E05011627. MSOA21 E02004486 being reassigned to Ward (WD25) (E05004098) instead of E05004109. The erroneous allocation was due to boundary refinement work conducted by Ordnance Survey. For more information and an overview of best-fitting follow this link - https://geoportal.statistics.gov.uk/datasets/f0aac7ccbfd04cda9eb03e353c613faa/about This is an update product! Please check your version and download the updated product. See details on our dedicated notices page. For further questions or specific requirements, please contact the ONS Geography mailbox ONS.Geography@ons.gov.uk