Westminster constituencies
The areas that each elect a Member of Parliament to the House of Commons. The Atlas holds release history from 2015, including boundaries from before and after the 2024 general-election redraw.
Name in the API
constituencyCovers
UK
Areas in the latest release
650
Published by
Office for National Statistics
Boundary releases
The Atlas holds 9 releases of these boundaries, newest first. Use the release id wherever an endpoint asks for release.
| Release | Description | Areas | Map tiles |
|---|---|---|---|
2024-07-uk-bgc | Westminster parliamentary constituencies, July 2024 (United Kingdom, generalised, clipped) | 650 | Yes |
2022-12-uk-bgc | Westminster parliamentary constituencies, December 2022 (United Kingdom, generalised, clipped) | 650 | Yes |
2021-12-uk-bgc | Westminster parliamentary constituencies, December 2021 (United Kingdom, generalised, clipped) | 650 | Yes |
2020-12-uk-bgc | Westminster parliamentary constituencies, December 2020 (United Kingdom, generalised, clipped) | 650 | Yes |
2019-12-uk-bgc | Westminster parliamentary constituencies, December 2019 (United Kingdom, generalised, clipped) | 650 | Yes |
2018-12-uk-bgc | Westminster parliamentary constituencies, December 2018 (United Kingdom, generalised, clipped) | 650 | Yes |
2017-12-uk-bgc | Westminster parliamentary constituencies, December 2017 (United Kingdom, generalised, clipped) | 650 | Yes |
2016-12-uk-bgc | Westminster parliamentary constituencies, December 2016 (United Kingdom, generalised, clipped) | 650 | Yes |
2015-12-gb-bgc | Westminster parliamentary constituencies, December 2015 (Great Britain, generalised, clipped) | 626 | Yes |
Boundaries are published by Office for National Statistics under the Open Government Licence v3.0. Get attribution text gives the credit line for a map.
Datasets on these areas
| Datasets | Code year | Periods | Covers |
|---|---|---|---|
| Population | 2024 | 2021 to 2022 | England and Wales |
| General elections | 2019 | 2010 to 2019 | UK |
2024 | 2024 | UK |
Request it
List the areas in the latest release:
curl "https://api.ukdataatlas.com/v1/areas?geography=constituency&release=2024-07-uk-bgc&limit=5"Draw them on a map with vector tiles:
curl "https://api.ukdataatlas.com/v1/map-resources/constituency/2024-07-uk-bgc/tiles.json"/areas/{geography}/{release}/{code}/geometryGet an area's shapeget/areas:containsFind areas at a pointget/boundary-releases:resolveFind boundaries for a dateDownloads
Every release has an area-code lookup table. Releases with map resources also have downloadable PMTiles and GeoParquet shapes. The source and licence information above applies to these files too; preserve the attribution and note any cleaning or reformatting when you redistribute one.
| Release | Area codes | Boundary files |
|---|---|---|
| 2024-07-uk-bgc | CSV | PMTilesGeoParquet |
| 2022-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2021-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2020-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2019-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2018-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2017-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2016-12-uk-bgc | CSV | PMTilesGeoParquet |
| 2015-12-gb-bgc | CSV | PMTilesGeoParquet |