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 31 December 2022. (File Size - 1.8 MB)
Field Names - MSOA21CD, MSOA21NM, MSOA21NMW, WD22CD, WD22NM, LAD22CD, LAD22NM
Field Types - Text, Text, Text, Text, Text, Text, Text
Field Lengths - 9, 39, 28, 9, 53, 9, 35
This file published on 16th March 2023 is updated on 12th December 2025 to correct ward allocation of:
MSOA21 E02004452 being reassigned to Ward (WD22) (E05010365) instead of E05010366.
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 -
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