Code History Database: UK Statistical Geography Codes and Relationships (June 2017)
Updated 10mo ago
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Description
United Kingdom's Code History Database (CHD) as of June 2017, provided by the Government Digital Service. The database contains GSS nine-character codes for current and new statistical geographies from 1 January 2009, detailing codes, relationships, hierarchies, and archived data. It was updated on 3rd July 2017 to correct missing records and update various geographies.
Use Cases
Maintaining consistent geographic identifiers in statistical outputs based on the GSS coding and naming policy.
Mapping hierarchical relationships between administrative areas based on the described code structure and relationships.
Tracking historical changes to geographic boundaries and codes for longitudinal studies based on the archived data functionality.
Integrating with the Register of Geographic Codes (RGC) for summarizing area instances within each geographic entity.
Strengths
Contains GSS codes for statistical geographies from 1 January 2009, providing a multi-year history.
Includes details on codes, relationships, hierarchies, and archived data, offering multiple functionalities.
Specific update log details corrections and updates to geographies like LEPs, NHS regions, and wards.
Limitations
Description metadata is limited; actual data quality requires manual inspection after download.
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Provenance
Source
Government Digital Service
Collection Method
Likely compiled and maintained by UK statistical authorities.
Time Range
Codes from 1 January 2009, snapshot as of June 2017.
Freshness
Last updated 2025-08-11 07:50:23; freshness should be verified.
Geography
United Kingdom
Data is contained within a zip file; user guide and version notes are included in the product zip file for further information.