Ward to Westminster Parliamentary Constituency to LAD to CTYUA (May 2025) Lookup in the UK

• Published by: Office for National Statistics
• Last updated: 09 December 2025
• Topic: Not added
• Licence: None

Summary

This file is a lookup between electoral wards/divisions, Westminster parliamentary constituencies, local authority districts and county/unitary authorities in the United Kingdom as at 1st May 2025.  (File Size - 2.9 MB)  

Field Names - WD25CD, WD25NM, WD25NMW, PCON24CD, PCON24NM, PCON24NMW, LAD25CD, LAD25NM, LAD25NMW, CTYUA25CD, CTYUA25NM, CTYUA25NMW, SPLIT_WARD

Field Types - Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, Text,

Field Lengths - 9, 54, 33, 9, 40, 32, 9, 36, 24, 9, 36, 24, 3

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Data links

Link to the data	Format	File added	Data preview
ArcGIS Hub Dataset	HTML	09 December 2025	Not available
KML	KML	23 September 2025	Not available
GeoJSON	GEOJSON	23 September 2025	Not available
Shapefile	ZIP	23 September 2025	Not available
CSV	CSV	23 September 2025	Preview
ArcGIS GeoService	ARCGIS GEOSERVICES REST API	23 September 2025	Not available

Additional information

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• Harvest GUID: https://www.arcgis.com/home/item.html?id=ac27c7721e664440adcc9e862505c8bc&sublayer=0
• Source Metadata: XML
• Source Metadata: HTML

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