These products provide information on administrative boundary changes and local government reorganisation. Click on the text in the appropriate coloured box for more details:
| ONS Geography User Guide |
Information on administrative boundary changes in England and Wales in the period between the 1991 Census and the 2001 Census. |
| Gazetteer of the old and new geographies of the United Kingdom |
Comprehensive illustrated guide to the changes to the UK's administrative structure resulting from the 1990s Local Government Reorganisation (LGR). |