Local Authority District Boundaries in Great Britain, December 2009

Five resolution versions of digital vector boundaries for Local Authority Districts in Great Britain are available, ranging from full resolution to ultra generalised (500m). The dataset contains both Ordnance Survey and Office for National Statistics intellectual property rights. File sizes vary from 367 KB for the ultra generalised version to 49 MB for the full resolution version clipped to the coastline.

Use Cases

• Mapping historical administrative units based on the provided vector boundaries.
• Performing spatial joins with other datasets using the generalised boundary files.
• Analyzing coastal administrative extents using the boundaries clipped to the Mean High Water mark.
• Creating simplified visualizations for web maps using the super or ultra generalised versions.

Strengths

• Offers five distinct boundary resolutions, with file sizes explicitly listed from 367 KB to 49 MB.
• Contains intellectual property from two authoritative UK sources: Ordnance Survey and the Office for National Statistics.
• Provides specific temporal coverage for the boundaries, dated December 2009.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect temporal bias inherent to the 2009 snapshot, which may not reflect current boundaries.
• Row count is unknown, which may limit suitability assessment for large-scale statistical analysis.

Provenance

Source

Office for National Statistics

Time Range

December 2009

Freshness

Last updated 2026-07-08 13:33:21.212704; freshness should be verified.

Geography

Great Britain