Local Authority District Boundaries for Great Britain, December 2009

Office for National Statistics provides digital vector boundaries for Local Authority Districts in Great Britain as of December 2009. The dataset includes five boundary versions at different resolutions and file sizes, from a 45 MB full-resolution extent to a 367 KB ultra-generalised version. It contains both Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Mapping local government jurisdictions based on the provided vector boundaries.
• Conducting spatial analysis of administrative units based on the coastline-clipped or full-extent boundaries.
• Creating simplified visualizations for dashboards using the generalised (20m, 200m, 500m) boundary versions.
• Integrating historical 2009 district boundaries with other temporal datasets for change analysis.

Strengths

• Provides five distinct boundary versions for different use cases, from full resolution to ultra generalised.
• Includes specific file sizes for each version, ranging from 367 KB to 49 MB.
• Contains intellectual property from two authoritative UK sources: Ordnance Survey and ONS.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a single snapshot in December 2009 and may not reflect current boundaries.
• Row count is unknown, which may limit suitability assessment for large-scale joins.

Provenance

Source

Office for National Statistics

Collection Method

Digital vector boundaries likely sourced from Ordnance Survey and processed by ONS.

Time Range

December 2009

Freshness

Last updated 2026-07-08 13:32:01.516146; freshness should be verified.

Geography

Great Britain