NHS Postcode Directory (May 2024): UK Postcode to Administrative Area Linkages

The NHS Postcode Directory provides linkage data for UK postcodes to administrative and health geographies. The user guide, published by the Government Digital Service, details directory content, methodology, data formats, quality, and limitations. The guide was last updated on the platform in August 2025.

Use Cases

• Link patient records to health authorities based on postcode assignment methodology described in the guide
• Perform geographic analysis of public health metrics using the postcode-to-area mapping
• Assess data quality for UK regional studies based on the documented limitations and currency information

Strengths

• Includes a detailed user guide covering methodology and data quality
• Published by the authoritative Government Digital Service
• Guide provides information on data currency and recent changes

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• The actual data files are not directly available in this listing, only the user guide

Provenance

Source

Government Digital Service

Collection Method

Methodology for assigning areas to postcodes is described in the user guide

Time Range

Directory version is from May 2024

Freshness

Last updated 2025-08-11 08:21:45; freshness should be verified

Geography

United Kingdom