Welsh Assembly Constituency Boundaries from December 2015

Digital vector boundaries for National Assembly for Wales constituencies as of December 2015. The dataset contains multiple boundary resolutions, from full resolution to ultra generalised, each clipped to the coastline. It is provided by the Office for National Statistics and contains Ordnance Survey and ONS intellectual property rights.

Use Cases

• Map constituency boundaries for Wales based on the super generalised (200m) resolution.
• Analyze the geographic extent of electoral regions using the full resolution boundaries.
• Create simplified visualizations for web maps using the ultra generalised (500m) boundaries.
• Compare coastline-clipped boundaries against the full extent-of-the-realm boundaries.

Strengths

• Provides five distinct boundary resolutions, including file sizes ranging from 34 KB to 4 MB.
• Includes specific download URLs for ArcGIS REST services, facilitating direct access.
• Contains boundaries as of a specific date (December 2015), providing a historical snapshot.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal bias inherent to the 2015 snapshot.

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 13:32:48.086345; freshness should be verified.

Geography

Wales