ITL3: UK International Territorial Level 3 Boundaries (2025)

United Kingdom digital vector boundaries for International Territorial Level 3 (ITL3) regions, as of January 2025. The dataset provides full-resolution boundaries clipped to the coastline at the Mean High Water mark. It contains intellectual property rights from both Ordnance Survey and the Office for National Statistics.

Use Cases

• Mapping regional economic indicators based on the ITL3 statistical geography.
• Performing spatial joins with socio-economic data using the official 2025 boundaries.
• Creating visualizations for UK sub-national analysis clipped to the coastline.
• Integrating UK regional data with Eurostat datasets that use the ITL classification.

Strengths

• Boundaries are specified as full resolution (BFC), suggesting high detail.
• Geographic accuracy is enhanced by clipping to the Mean High Water coastline.
• Cross-platform presence on EU and UK open data portals indicates official status and reliability.

Limitations

• Column names and specific attribute data are not provided in the source metadata.
• The dataset's size and row count are unknown, limiting assessment of its scope.
• Conflicting 'last updated' dates (2026-06-24 vs 2025-03-19) create uncertainty about the most recent version.

Provenance

Source

Government Digital Service (UK), Ordnance Survey, Office for National Statistics

Collection Method

Official boundary creation and publication by UK national mapping and statistical agencies.

Time Range

January 2025

Freshness

2026-06-24 22:03:20.395510

Geography

United Kingdom