# The 2023 local authority district changes

17 local authority district codes were replaced on 1 April 2023, creating
4 new codes across 17 predecessor-to-successor relationships.


- Codes replaced: 17
- Codes created: 4
- Relationships: 17
- Instruments: The Cumbria (Structural Changes) Order 2022; The North Yorkshire (Structural Changes) Order 2022; The Somerset (Structural Changes) Order 2022

## What changed

| Old code | Name | Replaced by | Successors |
|---|---|---|---|
| E07000026 | Allerdale | E06000063 Cumberland | 1 |
| E07000027 | Barrow-in-Furness | E06000064 Westmorland and Furness | 1 |
| E07000028 | Carlisle | E06000063 Cumberland | 1 |
| E07000029 | Copeland | E06000063 Cumberland | 1 |
| E07000163 | Craven | E06000065 North Yorkshire | 1 |
| E07000030 | Eden | E06000064 Westmorland and Furness | 1 |
| E07000164 | Hambleton | E06000065 North Yorkshire | 1 |
| E07000165 | Harrogate | E06000065 North Yorkshire | 1 |
| E07000187 | Mendip | E06000066 Somerset | 1 |
| E07000166 | Richmondshire | E06000065 North Yorkshire | 1 |
| E07000167 | Ryedale | E06000065 North Yorkshire | 1 |
| E07000168 | Scarborough | E06000065 North Yorkshire | 1 |
| E07000188 | Sedgemoor | E06000066 Somerset | 1 |
| E07000169 | Selby | E06000065 North Yorkshire | 1 |
| E07000246 | Somerset West and Taunton | E06000066 Somerset | 1 |
| E07000031 | South Lakeland | E06000064 Westmorland and Furness | 1 |
| E07000189 | South Somerset | E06000066 Somerset | 1 |

## Provenance

Source: Office for National Statistics, Code History Database (June 2026).
Retrieved 7 September 2026.
Dataset version CHD-2026-06. Open Government Licence v3.0.
Canonical: https://ukmwi.co.uk/changes/2023/local-authority-districts