County and Unitary Authority (April 2025) Names and Codes in the UK

• Published by: Office for National Statistics
• Last updated: 25 February 2026
• Topic: Not added
• Licence: None

Summary

A file containing the counties and unitary authorities (counties, metropolitan counties, London boroughs, unitary authorities, council areas and local government districts) in the United Kingdom as at 1st April 2025. (File Size = 40KB)

Field Names - CTYUA25CD, CTYUA25NM, CTYUA25NMW

Field Types - Text, Text, Text, 

Field Lengths - 9, 35, 24

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Link to the data	Format	File added	Data preview
KML	KML	27 January 2026	Not available
GeoJSON	GEOJSON	27 January 2026	Not available
Shapefile	ZIP	27 January 2026	Not available
CSV	CSV	27 January 2026	Preview
ArcGIS GeoService	ARCGIS GEOSERVICES REST API	27 January 2026	Not available
ArcGIS Hub Dataset	HTML	27 January 2026	Not available

Additional information

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• Harvest GUID: https://www.arcgis.com/home/item.html?id=f89ec7d23b624375bcbb5c52bc2ece7e&sublayer=0
• Source Metadata: XML
• Source Metadata: HTML

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