Westminster Parliamentary Constituencies in the UK: Names and Codes as of December 2020

United Kingdom Westminster parliamentary constituency names and codes as at 31 December 2020. The dataset contains three fields: PCON20CD, PCON20NM, and FID, with field lengths of 9 and 41 characters. It was published by the Government Digital Service and last updated on the platform in October 2022.

Use Cases

• Mapping electoral boundaries based on the constituency names and codes.
• Joining election results data based on the PCON20CD identifier.
• Validating geographic data integrity based on the official Feature ID (FID).

Strengths

• Provides official codes (PCON20CD) and names (PCON20NM) for all UK parliamentary constituencies as of a specific date (31 December 2020).
• Includes a Feature ID (FID) for integration with the Open Geography portal.
• Available in multiple geospatial formats including GEOJSON and KML.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Last updated 2022-10-24 15:10:20.988000; freshness should be verified against more recent boundary changes.
• Column-level documentation is absent; field semantics for PCON20CD and PCON20NM must be inferred after download.

Provenance

Source

Government Digital Service

Collection Method

Published process for the Open Geography portal.

Time Range

Snapshot as of 31 December 2020.

Freshness

Data snapshot is from December 2020; metadata last updated October 2022.

Geography

United Kingdom