National Assembly for Wales Constituency Boundaries, December 2015

Wales electoral constituency boundaries as of December 2015, provided by the Office for National Statistics. The dataset includes five vector boundary resolutions, from full extent to ultra-generalized, clipped to the coastline. It contains both Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Map constituency boundaries for electoral analysis based on the provided vector geometries.
• Perform spatial analysis of Welsh regions based on the full-resolution or generalized boundary files.
• Create simplified visualizations for web maps using the super-generalized (200m) or ultra-generalized (500m) boundaries.
• Integrate electoral boundaries with other geospatial data using the coastline-clipped versions.

Strengths

• Includes five specific boundary resolutions with stated file sizes (e.g., 4 MB for full resolution).
• Provides both 'extent of the realm' and 'clipped to coastline' versions for different use cases.
• Offers multiple download formats (GEOJSON, CSV, KML, ZIP) and direct REST API access.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Office for National Statistics

Time Range

December 2015

Freshness

Last updated 2026-07-08 13:33:28.585015; freshness should be verified.

Geography

Wales