National Assembly for Wales Constituency Boundaries, December 2016

Office for National Statistics provides digital vector boundaries for National Assembly for Wales constituencies as of 31 December 2016. The dataset includes four boundary versions: full resolution (extent of the realm and clipped to coastline), generalised (20m), and super generalised (200m). It contains Ordnance Survey and ONS Intellectual Property Rights and is available via multiple ArcGIS REST services.

Use Cases

• Mapping constituency boundaries for Wales based on the provided vector data.
• Performing spatial analysis of electoral districts using the generalised (20m) or super generalised (200m) versions for simplified geometry.
• Integrating boundary data with other geospatial datasets using the coastline-clipped versions.
• Visualizing the extent of the realm versus the clipped coastline boundaries for cartographic purposes.

Strengths

• Provides four specific boundary versions with stated file sizes: full resolution (4-5 MB), generalised 20m (517 KB), and super generalised 200m (87 KB).
• Has a specific snapshot date of 31 December 2016, providing a clear temporal reference.
• Includes direct REST service URLs for ArcGIS INSPIRE View, Feature Download, and Feature Server 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.
• Last updated 2026-07-08 13:32:45.631646; freshness should be verified.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral boundary definitions.

Time Range

Snapshot as of 31 December 2016.

Freshness

Snapshot as of 31 December 2016; metadata last updated 2026-07-08.

Geography

Wales