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- Published by:
- Office for National Statistics
- Last updated:
- 07 July 2025
The document explains the coding and naming policy for UK statistical geographies.Updated July 2025.
- Published by:
- Office for National Statistics
- Last updated:
- 01 September 2025
The FAQ answers several key methodological, definitional and technical questions about the 2021 RUC, and is intended to provide supplementary contextual information to support users.Note: Last...
- Published by:
- Office for National Statistics
- Last updated:
- 23 December 2025
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 -...
- Published by:
- Office for National Statistics
- Last updated:
- 23 December 2025
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...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file contains the names and codes for local planning authorities (LPA) in the United Kingdom as at 1st May 2025. (File size - 56KB). The co-terminous relates to whether it is...
- Published by:
- Office for National Statistics
- Last updated:
- 09 December 2025
A lookup between wards, local authority districts (LAD), counties, regions and countries as at 1st May 2025 in the United Kingdom (File Size - 2.8 MB). Field Names - WD25CD, WD25NM, WD25NMW,...
- Published by:
- Office for National Statistics
- Last updated:
- 23 December 2025
This file is a best fit lookup between output areas (December 2021), electoral wards/divisions and local authority districts in England and Wales as at 1st May_2025. (File Size - 11...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file is a lookup between LSOA (2021), Sub Integrated Care Board Locations (SICBL), Integrated Care Boards (ICB), Cancer Alliances (CAL) and local authority districts (LAD) in England as...
- Published by:
- Office for National Statistics
- Last updated:
- 07 July 2025
The GSS Coding and Naming policy was implemented on 1 January 2011. This change affected all users and producers of statistics. This document contains the frequently asked questions about the...
- Published by:
- Office for National Statistics
- Last updated:
- 23 December 2025
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 4th May 2023. (File Size - 1.78...
- Published by:
- Office for National Statistics
- Last updated:
- 23 December 2025
This file is a best fit lookup between output areas (December 2021), electoral wards/divisions and local authority districts in England and Wales as at 2nd May 2024. (File Size - 11...
- Published by:
- Office for National Statistics
- Last updated:
- 23 December 2025
This file is a best fit lookup between output areas (December 2021), electoral wards/divisions and local authority districts in England and Wales as at 4th May 2023. (File Size - 11...
- Published by:
- Office for National Statistics
- Last updated:
- 05 May 2025
This file contains the names and codes for electoral wards/divisions in the United Kingdom as at 1st May 2025.(File Size - 736KB)Field Names - WD25CD, WD25NM, WD25NMWField Types - Text, Text,...
- Published by:
- Office for National Statistics
- Last updated:
- 09 December 2025
A lookup file of the local authority districts as at December 2024 to the local authority districts as at 1st April 2025 in the United Kingdom (File Size = 64KB)Field Names - LAD24CD, LAD24NM,...
- Published by:
- Office for National Statistics
- Last updated:
- 16 December 2025
This file contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom as at November 2025 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. To download the zip file...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file contains the names and codes for Senedd Cymru electoral regions in Wales as at 31st December 2025. (File Size - 16 KB) Field Names - SENER25CD, SENER25NM, SENER25NMWField Types...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file contains the names and codes for Senedd Cymru Constituencies in Wales as at 31st December 2025. (File Size - 16 KB) Field Names - SENC25CD, SENC25NM, SENC25NMWField Types -...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file contains names and codes for community safety partnerships (CSP) in England and Wales as at 31st December 2025. (File Size - 40 KB) Field Names - CSP25CD, CSP25NM,...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file contains the names and codes for the Scottish Parliamentary Regions in Scotland as at 31st December 2025. (File Size - 17 KB) Field Names - SPR25CD, SPR25NMField Types - Text,...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
This file contains the names and codes for regions (former GORs) in England as at 31st December 2025. (File Size - 13 KB) Field Names - RGN25CD, RGN25NM, RGN25NMWField Types - Text,...