UK Electoral Ward to Parliamentary Constituency and Local Authority Lookup, December 2020

December 2020 lookup file mapping electoral wards/divisions to Westminster parliamentary constituencies and local authority districts in the United Kingdom. The dataset is published by the Government Digital Service and was last updated on the platform in July 2022. It includes codes and names for each administrative level, with a note on postponed electoral changes and a specific update for Leeds wards.

Use Cases

• Joining electoral data to different UK administrative geographies based on the provided ward, constituency, and district codes.
• Creating maps of UK parliamentary constituencies linked to their component electoral wards.
• Analyzing population or socio-economic statistics aggregated from ward level up to local authority district level.
• Validating or correcting geographic data flows between different UK administrative boundary systems.

Strengths

• Provides a direct, official lookup between three key UK administrative geographies as of a specific date (31 December 2020).
• Field lengths are specified (e.g., WD20CD is 9 characters), suggesting structured data formatting.
• Includes notes on specific boundary changes (e.g., for Garforth & Swillington, and Temple Newsam wards), indicating maintenance.

Limitations

• Row count is unknown, which may limit suitability assessment for large-scale joins.
• Last updated 2022-07-22; freshness should be verified against more recent boundary changes.
• Column-level documentation is absent; field semantics must be inferred from names or inspected after download.

Provenance

Source

Government Digital Service

Collection Method

Likely compiled from official UK electoral and geographic registers.

Time Range

Snapshot as of 31 December 2020.

Freshness

Snapshot as of 31 December 2020; platform record updated 2022-07-22.

Geography

United Kingdom