ONS Postcode Directory User Guide: Content and Methodology for UK Postcode Areas

ONS Postcode Directory User Guide from February 2018, published by the Government Digital Service. The guide explains directory content, data currency, methodology for assigning areas to postcodes, data formats, quality limitations, and recent changes. The file size is 487 KB.

Use Cases

• Understanding the methodology for assigning administrative areas to UK postcodes based on the guide's description.
• Assessing data quality and limitations for geospatial analysis projects based on the described quality information.
• Interpreting data formats and recent changes to the ONSPD for data integration tasks.

Strengths

• Includes a detailed user guide explaining methodology and data quality, which is 487 KB in size.
• Published by the Government Digital Service, suggesting an official source.

Limitations

• The dataset's actual row count, columns, and sample data are unknown.
• The data described is from February 2018; the guide's metadata was last updated in 2025, but the core data may be outdated.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Government Digital Service

Collection Method

Likely compiled and maintained by the UK's Office for National Statistics (ONS).

Time Range

Snapshot from February 2018.

Freshness

Last updated 2025-08-11 07:49:20; the underlying data snapshot is from February 2018.

Geography

United Kingdom (based on ONS postcode directory scope).