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Historical boundary change

In the past, ONS Geography created two products to support periods of change in administrative geographies. The products are no longer maintained but are still available as download files.

The ONS Geography User Guide provides details of administrative area boundary changes in England and Wales between the 1991 Census and the 2001 Census. It contains maps showing which counties, districts and unitary authorities were affected by boundary change, as well as indicating the extent and frequency of those changes. There are also a number of directories listing the instances of each type of boundary change. In each directory, users are referred to the applicable Statutory Instruments or Act of Parliament.

The Gazetteer of the Old and New Geographies of the United Kingdom provides details of the Local Government Reorganisation between 1995 and 1998 which resulted in major changes to the administrative structure of the United Kingdom. The Gazetteer is a comprehensive and illustrated guide to those changes. It relates all new administrative geographies to the former ones, and also links the new areas to Government Office Regions (GORs), Standard Statistical Regions (SSRs), Nomenclature of Units for Territorial Statistics (NUTS) areas and health geographies.

Product Details

Both products are available as PDF files.

Availability and Cost

Both products can be downloaded free of charge by clicking on the appropriate link below:

ONS Geography User Guide (2.75 Mb ZIP)

Gazetteer of the Old and New Geographies of the United Kingdom (4 Mb ZIP)

Content from the Office for National Statistics.
© Crown Copyright applies unless otherwise stated.