National Assembly for Wales Constituency Boundaries from December 2015

National Assembly for Wales Constituencies (December 2015) Ultra Generalised Clipped Boundaries in Wales contains digital vector boundaries for Welsh electoral constituencies as of December 2015. The dataset includes five resolution levels, from full resolution to ultra generalised (500m), and is provided by the Office for National Statistics under the OGL-UK-3.0 license.

Use Cases

• Mapping constituency-level data based on the provided vector boundaries.
• Performing spatial analysis of Welsh electoral districts based on the coastline-clipped geometries.
• Creating simplified visualizations for web maps using the ultra generalised (500m) boundaries.
• Integrating historical constituency boundaries from December 2015 into larger geospatial analyses.

Strengths

• Provides five distinct resolution levels, from 4 MB full resolution to 34 KB ultra generalised.
• Includes boundaries clipped to the coastline (Mean High Water mark) for cartographic use.
• 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.
• Data is specific to 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

December 2015

Freshness

Last updated 2026-07-08 13:33:25.927011; freshness should be verified.

Geography

Wales