National Assembly for Wales Electoral Regions: Vector Boundaries from December 2015

Digital vector boundaries for the National Assembly for Wales Electoral Regions as of December 2015. The dataset contains five boundary versions, including full-resolution and multiple generalised versions clipped to the coastline. Office for National Statistics provides this data under OGL-UK-3.0 license.

Use Cases

• Create electoral maps based on the full-resolution extent of the realm boundaries.
• Perform spatial analysis using the generalised (20m) boundaries for faster processing.
• Visualize regional data on web maps using the ultra generalised (500m) boundaries.
• Conduct coastal boundary analysis using the versions clipped to the Mean High Water mark.

Strengths

• Contains five distinct boundary versions for flexibility in use cases.
• File sizes are explicitly listed, ranging from 23 KB to 3 MB.
• Includes both Ordnance Survey and ONS Intellectual Property Rights.
• Available via multiple REST endpoints for programmatic access.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to uk_data.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral cartography.

Time Range

December 2015

Freshness

Last updated 2026-07-08 13:33:13.120332; freshness should be verified.

Geography

Wales