Westminster Parliamentary Constituency Boundaries in Great Britain, December 2015

Office for National Statistics provides digital vector boundaries for Westminster Parliamentary Constituencies in Great Britain as of 31 December 2015. The dataset includes multiple resolution versions, from full resolution to ultra generalised (500m), each clipped to the coastline. It contains Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Create electoral maps based on the ultra generalised (500m) boundaries for web visualization.
• Perform spatial analysis of constituency areas using the full resolution boundaries clipped to the coastline.
• Integrate boundary data with demographic statistics for the December 2015 electoral snapshot.

Strengths

• Provides five distinct boundary resolutions, with file sizes ranging from 488 KB to 56 MB.
• Boundaries are explicitly dated as of 31 December 2015, offering a specific historical snapshot.
• Includes both full extent and coastline-clipped versions for different analytical needs.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is specific to a single date (December 2015) and may not reflect subsequent boundary changes.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral boundary definitions.

Time Range

As of 31 December 2015

Freshness

Last updated 2026-07-08 13:30:56.610714; freshness should be verified.

Geography

Great Britain