Senedd Cymru Constituencies: Welsh Parliamentary Boundaries for May 2026

Digital vector boundaries for Senedd Cymru Constituencies in Wales, as at May 2026. The boundaries are provided in Full resolution - extent of the realm (BFE), which typically follows the Mean Low Water mark. The dataset contains both Ordnance Survey and Office for National Statistics Intellectual Property Rights.

Use Cases

• Mapping electoral constituencies based on the provided digital vector boundaries.
• Analyzing changes in political representation based on the May 2026 boundary definitions.
• Integrating constituency data with demographic or voting data for spatial analysis.
• Creating visualizations of Welsh parliamentary districts for public information.

Strengths

• Boundaries are specified for a specific future date (May 2026).
• Data includes full-resolution vector boundaries for the extent of the realm.
• Contains intellectual property from authoritative sources (Ordnance Survey and ONS).

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 or administrative bias inherent to the source.

Provenance

Source

Office for National Statistics

Time Range

May 2026

Freshness

Last updated 2026-05-13 18:04:09.400969.

Geography

Wales