Wales Electoral Region Boundaries at 31 December 2016 in Multiple Resolutions

Digital vector boundaries for the National Assembly for Wales Electoral Regions as of 31 December 2016. The dataset contains four boundary versions: full resolution (extent of the realm), full resolution clipped to the coastline, generalised (20m) clipped, and super generalised (200m) clipped. Contains both Ordnance Survey and Office for National Statistics intellectual property rights.

Use Cases

• Mapping electoral region extents based on the provided vector boundaries.
• Analyzing coastline clipping methodologies based on the Mean High Water and Mean Low Water marks described.
• Comparing boundary generalisation levels (20m vs 200m) for cartographic or analytical purposes.
• Integrating electoral geography with other datasets using the provided ArcGIS REST service endpoints.

Strengths

• Provides four distinct boundary versions for flexibility in use cases.
• Specific file sizes are listed for each version, ranging from 61 KB to 3 MB.
• Includes direct REST service URLs for programmatic access and integration.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-07-08 13:30:37.550297; freshness should be verified.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral boundary definitions.

Time Range

As at 31 December 2016

Freshness

Data is current as of 31 December 2016; metadata was last updated on 2026-07-08.

Geography

Wales