UK Electoral Ward to Parliamentary Constituency Lookup as of December 2016

A 2 MB lookup file from the Government Digital Service maps electoral wards and divisions to Westminster parliamentary constituencies and local authority districts. This administrative geography snapshot is valid as of 31 December 2016 and was last updated on the platform in July 2022. The data is served via an ArcGIS FeatureServer and is available in multiple formats including CSV and GeoJSON.

Use Cases

• Join electoral or demographic statistics across different UK administrative geographies based on the lookup relationships.
• Analyze changes in constituency boundaries over time by comparing this 2016 snapshot with other years.
• Create maps of UK local authority districts colored by their constituent parliamentary constituencies.
• Validate the hierarchical relationship between wards, constituencies, and districts for data quality checks.

Strengths

• Provides a definitive administrative snapshot with a specific reference date of 31 December 2016.
• Published by the authoritative Government Digital Service.
• Available in multiple interoperable formats, including CSV and GeoJSON.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2022-07-22 14:36:35.965000; freshness should be verified for current applications.
• Row count is unknown, which may limit suitability assessment for large-scale joins.

Provenance

Source

Government Digital Service

Collection Method

Likely an official administrative boundary definition published by the UK government.

Time Range

Snapshot as of 31 December 2016.

Freshness

Snapshot date is 2016-12-31; metadata last updated 2022-07 -22.

Geography

United Kingdom