Electoral registrations for parliamentary and local government elections as recorded in electoral registers for England, Wales, Scotland and Northern Ireland.

Mid-year (30 June) estimates of the usual resident population for electoral wards in England and Wales.

Mid-year (30 June) estimates of the usual resident population for Westminster Parliamentary constituencies in England and Wales.

This file contains the digital vector boundaries for County Electoral Division, in England, as at May 2023.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/County_Electoral_Division_May_2023_Boundaries_EN_BFE/FeatureServerREST URL of WFS Server –https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/County_Electoral_Division_May_2023_Boundaries_EN_BFE/WFSServer?service=wfs&request=getcapabilitiesREST URL of Map Server –https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/County_Electoral_Division_(May_2023)_Boundaries_EN_BFE/MapServer

This zip file contains the Standard Area Measurements (SAM) for the electoral areas in the United Kingdom as 31 December 2022. This includes Westminster parliamentary constituencies, Senedd constituencies and electoral regions in Wales, and Scottish Parliament constituencies and regions in Scotland. All measurements provided are ‘flat’ as they do not consider variations in relief, e.g. mountains and valleys. Measurements are given in hectares (10,000 square metres) to 2 decimal places. Four types of measurements are included: total extent (AREAEHECT), area to mean high water (coastline) (AREACHECT), area of inland water (AREAIHECT) and area to mean high water excluding area of inland water (land area) (AREALHECT). The Eurostat-recommended approach is to use the ‘land area’ measurement to compile population density figures.