ONSPD User Guide: Postcode Directory Documentation

828 KB of documentation provides a user guide for the ONS Postcode Directory (ONSPD). The guide details directory content, data currency, methodology for assigning administrative areas to postcodes, and data quality limitations. It is available in PDF and ODT formats and is published by the UK's Office for National Statistics.

Use Cases

• Understanding postcode-to-area assignment methodology based on the described methodology section.
• Assessing data quality and limitations for research projects using the detailed quality information.
• Referencing official administrative boundary linkages for geospatial analysis in the United Kingdom.

Strengths

• Published by the authoritative Office for National Statistics, the UK's national statistical institute.
• Includes detailed supporting information on methodology and data quality in annexes and tables.
• Documentation is provided in multiple accessible formats (PDF and ODT).

Limitations

• The dataset entry itself contains only documentation (a user guide), not the underlying postcode directory data.
• Metadata for the actual data (row count, columns, license) is completely absent from the provided sources.
• Sources conflict on the publication date, with one platform listing it as a 2024 product and others as 2026.

Provenance

Source

Office for National Statistics

Collection Method

Official government compilation and publication.

Freshness

Last updated 2026-06-03 on uk_data; 2025-08-11 on eu_open_data.

Geography

United Kingdom