Westminster Parliamentary Constituency Boundaries for Great Britain, December 2015

December 2015 digital vector boundaries for Westminster Parliamentary Constituencies in Great Britain, provided by the Office for National Statistics. The dataset contains multiple boundary versions, including full resolution, generalised (20m), super generalised (200m), and ultra generalised (500m) files clipped to the coastline. It contains both Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Visualise electoral constituency shapes on maps based on the provided vector boundaries.
• Perform spatial analysis of constituency areas and relationships based on the boundary geometry.
• Create simplified, generalised maps for publication based on the 200m or 500m resolution files.
• Integrate historical 2015 constituency boundaries with other geospatial or demographic data.

Strengths

• Provides five distinct boundary versions, from full resolution to ultra generalised (500m), for different use cases.
• Includes specific file size information for each version, such as the 1 MB super generalised file.
• Contains authoritative boundaries from the Office for National Statistics and Ordnance Survey as of a specific date (31 December 2015).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from 2015 and may not reflect current constituency boundaries following subsequent reviews.
• Row count is unknown, which may limit suitability assessment for large-scale analysis.

Provenance

Source

Office for National Statistics

Collection Method

Official digital vector boundaries from UK national mapping and statistics agencies.

Time Range

As at 31 December 2015

Freshness

Last updated 2026-07-08 13:32:31.091772; freshness should be verified.

Geography

Great Britain