National Assembly for Wales Constituency Boundaries, December 2016

Digital vector boundaries for National Assembly for Wales Constituencies as of 31 December 2016, provided by the Office for National Statistics. The dataset includes four boundary variants: full resolution (extent of the realm and clipped to coastline), generalised (20m), and super generalised (200m). File sizes range from 87 KB for the super generalised version to 5 MB for the full resolution clipped version.

Use Cases

• Mapping constituency boundaries for Wales based on the provided vector data.
• Analyzing electoral geography using the different boundary resolutions (full, 20m, 200m).
• Integrating administrative boundaries with other geospatial datasets using the coastline-clipped versions.
• Visualizing the extent of Welsh constituencies for public information or research purposes.

Strengths

• Provides four specific boundary variants with stated file sizes (e.g., 87 KB super generalised, 5 MB full clipped).
• Contains a specific snapshot date (31 December 2016) for the boundaries.
• Includes intellectual property rights information from Ordnance Survey and ONS.

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 13:33:23.850523; freshness should be verified as the boundaries are from 2016.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral boundary definitions.

Time Range

As of 31 December 2016

Freshness

Data reflects boundaries as of 31 December 2016. Metadata last updated 2026-07-08.

Geography

Wales