Westminster Parliamentary Constituency Boundaries for Great Britain, December 2015

Great Britain's digital vector boundaries for Westminster Parliamentary Constituencies as of 31 December 2015. The dataset contains five boundary versions at different resolutions, from full extent to ultra generalised, with file sizes ranging from 488 KB to 56 MB. It is provided by the Office for National Statistics and contains Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Mapping constituency boundaries for electoral analysis based on the provided vector boundaries.
• Performing spatial joins with demographic data based on the constituency geography.
• Creating simplified maps for visualization based on the generalised (20m, 200m, 500m) boundary versions.
• Analyzing coastal and offshore electoral areas based on the full extent boundaries that include off-shore islands.

Strengths

• Provides five specific boundary versions for different use cases, including full resolution and three levels of generalisation.
• File sizes are explicitly listed, ranging from 488 KB for ultra generalised to 56 MB for full resolution clipped.
• Contains a specific snapshot date of 31 December 2015 for the boundaries.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical analysis.
• Data may reflect temporal bias inherent to the 2015 snapshot, as electoral boundaries are periodically reviewed.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral boundary definitions.

Time Range

Snapshot as of 31 December 2015.

Freshness

Last updated 2026-07-08 13:30:32.668139; freshness should be verified.

Geography

Great Britain (England, Scotland, Wales)