National Assembly for Wales Constituency Boundaries, December 2015

Wales electoral boundaries for the National Assembly as of December 2015. The dataset contains digital vector boundaries in five resolutions, from full resolution to ultra generalised (500m). It is provided by the Office for National Statistics and contains Ordnance Survey and ONS intellectual property rights.

Use Cases

• Mapping constituency boundaries for Wales based on the provided vector files.
• Conducting spatial analysis of electoral districts using the coastline-clipped boundaries.
• Creating simplified visualizations for web maps using the generalised (20m) or super generalised (200m) versions.

Strengths

• Offers five specific boundary resolutions, including full resolution and four generalised versions (20m, 200m, 500m).
• Provides direct file size information for each resolution, such as 511 KB for the generalised (20m) version.
• Includes multiple access methods via REST URLs for ArcGIS INSPIRE View and Feature Download services.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is specific to a single snapshot in time (December 2015).

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral boundary definitions.

Time Range

December 2015

Freshness

Last updated 2026-07-08 13:33:23.786135; freshness should be verified.

Geography

Wales