Westminster Parliamentary Constituency Boundaries in Great Britain, December 2016

Office for National Statistics provides digital vector boundaries for Westminster Parliamentary Constituencies in Great Britain as of December 2016. The dataset contains five boundary versions at different resolutions, from full extent to ultra-generalized (500m). It includes Ordnance Survey and ONS intellectual property rights and is available via multiple ArcGIS REST services.

Use Cases

• Map constituency boundaries for electoral analysis based on the provided vector data.
• Perform spatial joins with demographic data using the coastline-clipped boundaries.
• Create simplified visualizations for web maps using the 20m or 200m generalized boundaries.
• Analyze the geographic extent of parliamentary representation based on the realm-extent boundaries.

Strengths

• Offers five distinct boundary versions, including full resolution and four generalized/clipped options.
• File sizes are specified for each version, ranging from 500 KB to 55 MB.
• Contains intellectual property from both Ordnance Survey and the Office for National Statistics.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2026-07-08 13:31:40.117460; freshness should be verified.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral cartography.

Time Range

December 2016

Freshness

Snapshot as of December 2016.

Geography

Great Britain