Use our election maps for Great Britain and Northern Ireland to find out the electoral geography of the UK.

You will find the web apps particularly useful if you are an elected representative, candidate or party worker, as they clearly show the electoral constituencies against various scales of mapping background.

You can choose from a variety of administrative and electoral boundaries that can be overlaid on the mapping.

Electoral boundaries shown for Great Britain and Northern Ireland are those in effect at 1 October 2020.

England, Scotland and Wales are divided into parliamentary constituencies for voting purposes to elect members (MPs) to the Westminster Parliament. Parliamentary constituencies are made up of combinations of wards (or electoral divisions in Wales).

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https://www.ordnancesurvey.co.uk/products/boundary-line#technical

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Source:

https://osdatahub.os.uk/downloads/open/BoundaryLine

Licence:

Contains public sector information licensed under the Open Government Licence v3.0.

https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

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Constituency Boundaries - Generalised to 20m. The Constituencies Boundaries supplied are based on the Electoral (Amendment) (Dáil Constituencies) Act 2013

Scottish Parliamentary Constituencies and Regions define the electoral areas used to return members to the Scottish Parliament. There are 73 constituencies, each electing one Member of the Scottish Parliament (MSP), and 8 regional constituencies each electing an additional seven MSPs. The total number of parliamentary seats is 129. Boundaries Scotland is responsible for recommendations on the definition of constituency and region boundaries, however, the definitive dataset is delineated by Ordnance Survey for inclusion in their BoundaryLine product.

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https://www.ordnancesurvey.co.uk/products/boundary-line#technical

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Source:

https://osdatahub.os.uk/downloads/open/BoundaryLine

Licence:

Contains public sector information licensed under the Open Government Licence v3.0.

https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

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This dataset is from the Ordnance Survey and it provides a representation of the hierarchy of administrative and electoral boundaries for GB (England, Scotland and Wales). The product is part of the new OS Open products suite and is designed to be used with other OpenData sets.The dataset is made up of 18 layers which are grouped in their respective categories. It contains all levels of electoral and administrative boundaries, from district, wards, civil parishes (or communities) up to parliamentary and assembly constituencies. The layers can be grouped as followed:Administrative Boundaries• Mean high water (GB)• Country (GB)• Historic European regions (GB)• Historic counties (GB)• Ceremonial counties (GB)• District, Metropolitan district, Unitary authority (GB)• Civil parish and community (GB)• Ward (district, unitary, metropolitan, London borough) (England, Scotland)• English region (England)• County (England)• Community (Wales)Electoral Boundaries• Westminster constituencies (GB)• Scottish and Welsh constituency• Scottish and Welsh electoral region• Polling districts (England)• County electoral division (England)• Unitary electoral division (England and Wales)• Greater London Authority Assembly constituenciesThe currency of this data is 04/2022 and the coverage of this service is GB.The map projection is British National Grid.

Constituency Boundaries - ungeneralised. The Constituencies Boundaries supplied are based on the Electoral (Amendment) (Dáil Constituencies) Act 2013

For further information about the Parliamentary Constituencies and Members of Parliament in the York area, see the City of York Council website. The electoral divisions are derived from Ordnance Survey Boundary-Line data which is an OS OpenData product.

This file contains the digital vector boundaries for Westminster Parliamentary Constituencies, in the United Kingdom, as at 4th July 2024. The boundaries available are: (BGC) Generalised (20m) - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights. REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Westminster_Parliamentary_Constituencies_July_2024_Boundaries_UK_BGC/FeatureServer

A polling district is the subdivision of a parliamentary constituency for the purpose of a UK Parliamentary election. Polling districts are not maintained on a regular basis and have mostly been frozen since 2016. From May 2022, 63 areas will show amended polling districts.

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https://www.ordnancesurvey.co.uk/products/boundary-line#technical

​

Source:

https://osdatahub.os.uk/downloads/open/BoundaryLine

Licence:

Contains public sector information licensed under the Open Government Licence v3.0.

https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

​

This file contains the digital vector boundaries for Westminster Parliamentary Constituencies, in United Kingdom, as at December 2022.The boundaries available are: (BFE) Full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands).Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/ArcGIS/rest/services/PCON_DEC_2022_UK_BFE_V2/FeatureServerREST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/PCON_DEC_2022_UK_BFE_V2/WFSServer?service=wfs&request=getcapabilitiesREST URL of MapServer – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/PCON_DEC_2022_UK_BFE_V2/MapServer

This file contains the digital vector boundaries for National Assembly for Wales Electoral Regions in Wales, as at December 2021. The boundaries available are: (BGC) Generalised (20m) - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights. Download File SizesGeneralised (20m) - clipped to the coastline (719 KB)REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/National_Assembly_for_Wales_Constituencies_(Dec_2021)_WA_BGC/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/National_Assembly_for_Wales_Constituencies_Dec_2021_WA_BGC/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/National_Assembly_for_Wales_Constituencies_Dec_2021_WA_BGC_2022/FeatureServer

This file contains the digital vector boundaries for Westminster Parliamentary Constituencies in Great Britain as at 31 December 2015.

The boundaries available are:

Scottish Parliamentary Constituencies and Regions define the electoral areas used to return members to the Scottish Parliament. There are 73 constituencies, each electing one Member of the Scottish Parliament (MSP), and 8 regional constituencies each electing an additional seven MSPs. The total number of parliamentary seats is 129. Boundaries Scotland is responsible for recommendations on the definition of constituency and region boundaries, however, the definitive dataset is delineated by Ordnance Survey for inclusion in their BoundaryLine product.

This file contains the digital vector boundaries for National Assembly for Wales Constituencies in Wales, as at 31 December 2017.

The boundaries available are: Full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands); Full resolution - clipped to the coastline (Mean High Water mark); Generalised (20m) - clipped to the coastline (Mean High Water mark) and Super generalised (200m) - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights. REST URL of ArcGIS for INSPIRE View Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Electoral_Boundaries/National_Assembly_for_Wales_Constituencies_December_2017_Boundaries/MapServer/exts/InspireView REST URL of ArcGIS for INSPIRE Feature Download Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Electoral_Boundaries/National_Assembly_for_Wales_Constituencies_December_2017_Boundaries/MapServer/exts/InspireFeatureDownload REST URL of Feature Access Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Electoral_Boundaries/National_Assembly_for_Wales_Constituencies_December_2017_Boundaries/FeatureServer

This file contains the digital vector boundaries for National Assembly for Wales Constituencies in Wales, as at 31 December 2017. The boundaries are full resolution - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NAWC_(Dec_2017)_WA_BFC/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/National_Assembly_for_Wales_Constituencies_December_2017_WA_BFC/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NAWC_Dec_2017_WA_BFC_2022/FeatureServer

This file contains the digital vector boundaries for Westminster Parliamentary Constituencies, in the United Kingdom, as at 4th July 2024.

This file contains the digital vector boundaries for National Assembly for Wales Constituencies in Wales, as at 31 December 2017. The boundaries are full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands). Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NAWC_(Dec_2017)_WA_BFE/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/National_Assembly_for_Wales_Constituencies_December_2017_WA_BFE/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NAWC_Dec_2017_WA_BFE_2022/FeatureServer

This file contains the digital vector boundaries for National Assembly Wales Constituencies, in Wales, as at 31st December 2016. The boundaries are full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands). Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NAWC_(Dec_2016)_FEB_in_Wales/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/NAWC_Dec_2016_Full_Extent_Boundaries_in_Wales/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NAWC_Dec_2016_FEB_in_Wales_2022/FeatureServer

This file contains the digital vector boundaries for National Assembly for Wales Constituencies, in Wales, as at 31 December 2021. The boundaries available are: (BFC) Full resolution - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights. Download File SizesFull resolution - clipped to the coastline (7.0 MB)REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/National_Assembly_for_Wales_Constituencies_(Dec_2021)_WA_BFC/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/National_Assembly_for_Wales_Constituencies_Dec_2021_WA_BFC/WFSServer?service=wfs&request=getcapabilities

This file contains the digital vector boundaries for National Assembly for Wales Constituencies as at December 2015. The boundaries available are: