UK Westminster Parliamentary Constituency Boundaries, December 2016

Office for National Statistics provides digital vector boundaries for Westminster Parliamentary Constituencies in the UK as of December 2016. The dataset contains five boundary versions, including full-resolution and multiple generalised versions clipped to the coastline. It is served via ArcGIS REST services and contains both Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Mapping electoral constituency extents based on the provided full-resolution and generalised boundary files.
• Analyzing coastal and offshore island inclusion in political boundaries based on the 'extent of the realm' and 'clipped to coastline' variants.
• Performing spatial joins with demographic data using the consistent 2016 constituency geography.
• Creating simplified visualizations for web maps using the ultra generalised (500m) boundary version.

Strengths

• Provides five distinct boundary versions, including full resolution and four levels of generalisation.
• Specific file sizes are listed for each version, ranging from 45 MB for the full-resolution extent to 352 KB for the ultra generalised version.
• Contains authoritative 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.
• Data reflects a specific snapshot from December 2016 and may not represent current constituencies.

Provenance

Source

Office for National Statistics

Collection Method

Digital vector boundaries produced by the UK's national mapping and statistical agencies.

Time Range

December 2016

Freshness

Last updated 2026-07-08 13:32:28.144110; freshness should be verified.

Geography

United Kingdom