Westminster Parliamentary Constituencies in Great Britain with 200m Generalised Boundaries

Five vector boundary files for Westminster Parliamentary Constituencies in Great Britain as of 31 December 2015, provided by the Office for National Statistics. The boundaries range from full resolution to ultra generalised (500m), with file sizes from 488 KB to 56 MB. Contains both Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Create electoral maps based on super generalised (200m) boundaries for web visualization.
• Analyze constituency shapes and sizes using the full resolution extent of the realm boundaries.
• Perform spatial joins with demographic data using coastline-clipped generalised (20m) boundaries.

Strengths

• Provides five distinct boundary generalisation levels, from full resolution to ultra generalised (500m).
• Specific file sizes are listed for each boundary type, ranging from 488 KB to 56 MB.
• Contains authoritative boundaries from the Office for National Statistics and Ordnance Survey.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from December 2015 and may not reflect subsequent boundary changes.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Office for National Statistics

Time Range

As of 31 December 2015

Freshness

Last updated 2026-07-08 13:33:23.617393; freshness should be verified.

Geography

Great Britain