Westminster Parliamentary Constituency Boundaries for Great Britain, December 2015

Five versions of vector boundaries for Westminster Parliamentary Constituencies in Great Britain, as of 31 December 2015. The dataset includes full-resolution, generalised (20m), super generalised (200m), and ultra generalised (500m) boundaries, with file sizes ranging from 488 KB to 56 MB. It contains both Ordnance Survey and Office for National Statistics intellectual property rights.

Use Cases

• Mapping constituency-level election results based on the provided vector boundaries.
• Conducting spatial analysis of demographic data within parliamentary constituencies based on the clipped coastline geometry.
• Creating simplified (generalised) maps for publication or web display based on the 20m, 200m, and 500m resolution files.
• Integrating electoral boundaries with other UK geospatial datasets for regional planning or policy research.

Strengths

• Provides five distinct boundary resolutions, from full detail (52-56 MB files) to highly simplified (488 KB file).
• Explicitly states the snapshot date (31 December 2015) for temporal accuracy.
• Includes both clipped (coastline) and full-extent (realm) boundary versions.

Limitations

• Description metadata is limited; actual data quality and column definitions require manual inspection after download.
• Data is specific to a single historical snapshot (December 2015) and may not reflect current constituency boundaries.

Provenance

Source

Office for National Statistics

Collection Method

Digital vector boundaries produced by Ordnance Survey and ONS.

Time Range

Snapshot as of 31 December 2015.

Freshness

Last updated 2026-07-08 13:32:04.967472; freshness should be verified.

Geography

Great Britain (England, Scotland, Wales).