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- Published by:
- Office for National Statistics
- Last updated:
- 18 November 2025
Please Note: This file updated on 26th August 2025 to correct ward/local authority district allocation for E01027305 - West Northamptonshire 048E which was incorrect. See further details on our...
- 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:
- 11 August 2025
This zip file contains the Code History Database for the United Kingdom as at September 2017. To download the zip file click the Download button. The Code History Database (CHD) contains...
- Published by:
- Office for National Statistics
- Last updated:
- 18 February 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:
- 22 April 2026
This file is a lookup between LSOA (2021), Sub Integrated Care Board Locations (SICBL), Integrated Care Boards (ICB), NHS England Regions (NHSER ) and local authority districts (LAD) in...
- Published by:
- Office for National Statistics
- Last updated:
- 13 May 2026
This file contains names and codes for Counties in England as at 31st December 2025. (File Size - 16 KB)Field Names - CTY25CD, CTY25NMField Types - Text, TextField Lengths - 9, 16
- Published by:
- Office for National Statistics
- Last updated:
- 13 May 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:
- 11 August 2025
The Register of Geographic Codes (RGC) is a key product that contains the definitive list of UK statistical geographies. ONS maintains the definitive set of statistical geographies, coordinates the...
- Published by:
- Office for National Statistics
- Last updated:
- 27 January 2026
A lookup between 2021 Output Areas (OA) and County and Unitary Authorities (CTYUA) (Counties, Unitary Authorities, Metropolitan Districts and London Boroughs) as at 1st April 2025 in England and...
- 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:
- 11 August 2025
A lookup between Output Areas (OA) and regions as at 31 December 2021 in England and Wales. (File Size 6.2 MB).Field Names – OA21CD, RGN22CD, RGN22NM, RGN22NMWField Types – Text, Text, Text,...
- Published by:
- Office for National Statistics
- Last updated:
- 04 February 2026
This file contains names and codes for the parishes and communities in England and Wales as at 31st December 2025. (File Size - 557 KB)Field Names - PAR25CD, PAR25NM, PAR25NMW, LAD25CD,...
- Published by:
- Office for National Statistics
- Last updated:
- 11 August 2025
This zip file contains the Code History Database for the United Kingdom as at 31st December 2021. To download the zip file click the Download button.File includes updates to:Civil Parishes...
- Published by:
- OpenDataNI
- Last updated:
- 18 June 2026
An aerial survey of several river course sites across Northern Ireland was commissioned and purchased by the NIEA (Northern Ireland Environment Agency) Land Management Team in 2018. The purpose of...
- Published by:
- Office for National Statistics
- Last updated:
- 24 November 2024
This file contains the digital vector boundaries for Westminster Parliamentary Constituencies, in United Kingdom, as at December 2022.The boundaries available are: (BUC) Ultra generalised (500m) -...
- Published by:
- Office for National Statistics
- Last updated:
- 04 February 2026
A lookup file of wards to unitary authorities to Senedd Cymru electoral regions in Wales as at 31st December 2025. (File size - 168KB) Field Names - WD25CD, WD25NM, WD25NMW, UA25CD,...
- Published by:
- Office for National Statistics
- Last updated:
- 24 November 2024
This is a lookup file between local authority districts and countries in the UK as at 1st April 2023. (File Size - 56 KB)Field Names - LAD23CD, LAD23NM, LAD23NMW, CTRY23CD, CTRY23NM,...
- Published by:
- Office for National Statistics
- Last updated:
- 04 February 2026
A lookup file between unitary authorities and Department for Children Education Lifelong Learning and Skills areas in Wales as at 31st December 2025. (File Size - 16 KB)Field Names -...
- Published by:
- Office for National Statistics
- Last updated:
- 04 February 2026
This is a lookup file between local authority districts and local resilience forums in England and Wales as at 1st April 2025. (File Size - 56 KB)Field Names - LAD25CD, LAD25NM, LRF25CD,...
- Published by:
- Office for National Statistics
- Last updated:
- 04 February 2026
A lookup file between Scottish Parliamentary Constituencies and Scottish Parliamentary Regions in Scotland as at 31st December 2025. (File Size - 48 KB)Field Names - SPC25CD, SPC25NM,...
