National Assembly for Wales Electoral Regions, 2016 Boundaries in Multiple Resolutions

Office for National Statistics provides 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 and coastline-clipped), generalised (20m), and super generalised (200m). File sizes range from 61 KB for the super generalised version to 3 MB for the full resolution coastline-clipped version.

Use Cases

• Create electoral maps based on the 2016 National Assembly for Wales regions.
• Perform spatial analysis on Welsh administrative data using the generalised (20m) boundaries for faster processing.
• Develop web mapping applications using the super generalised (200m) boundaries for lightweight display.
• Analyze coastal versus inland electoral representation using the full resolution boundaries clipped to the Mean High Water mark.

Strengths

• Provides four distinct boundary resolutions, with file sizes explicitly listed (e.g., 61 KB for super generalised).
• Contains boundaries as of a specific date: 31 December 2016.
• Includes both Ordnance Survey and ONS Intellectual Property Rights, indicating authoritative sources.

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 13:32:52.235420; freshness should be verified.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized from official electoral cartography.

Time Range

As at 31 December 2016.

Freshness

Last updated 2026-07-08 13:32:52.235420; temporal coverage is 31 December 2016.

Geography

Wales, United Kingdom.