UK Boundary Mapping resources
A range of resources that map the boundaries of the United Kingdom such as; electoral constituencies, local authority areas, and health boards.
Westminster
Scotland
Scotland has 59 of the UK’s 650 parliamentary constituencies.
- Boundary Commission for Scotland
- Interactive maps with customisable layers
- Ordnance Survey Election Maps
- Boundary-Line™ on Digimap OS Data Download (UofG staff/students) (GIS software required)
England
England has 533 of the UK’s 650 parliamentary constituencies.
- Ordnance Survey Election Maps
- Boundary-Line™ on Digimap OS Data Download (UofG staff/students) (GIS software required)
Wales
Wales has 40 of the UK’s 650 parliamentary constituencies.
- Ordnance Survey Election Maps
- Boundary-Line™ on Digimap OS Data Download (UofG staff/students) (GIS software required)
Northern Ireland
- Ordnance Survey of Northern Ireland SpatialNI
- Select Spatial NI Map Viewer
- choose Add data from icons at the top right
- + Click to add data
- Search for ‘OSNI – Parliamentary Constituencies’
- Select Spatial NI Map Viewer
- Ordnance Survey of Northern Ireland
Devolved Parliaments and Assemblies
Scotland
The Scottish Parliament has 73 constituencies and 8 regional constituencies electing 129 MSPs (Members of the Scottish Parliament).
- Boundaries Scotland
- Ordnance Survey Election Maps
- Boundary-Line™ on Digimap OS Data Download (UofG staff/students) (GIS software required)
Wales
The Welsh Parliament / Senedd has 40 constituencies and 5 regional constituencies electing 60 MSs (Members of the Senedd).
Northern Ireland
The Northern Ireland Assembly / Stormont has 18 constituencies electing 90 MLAs (Members of the Legislative Assembly). The boundaries are the same as those for Westminster constituencies.
- Ordnance Survey of Northern Ireland SpatialNI
- Select Spatial NI Map Viewer
- choose Add data from icons at the top right
- + Click to add data
- Search for ‘OSNI – Parliamentary Constituencies’
- Select Spatial NI Map Viewer
- Ordnance Survey of Northern Ireland
Unitary (Local) Authorities / Councils / Wards
The administrative local government divisions are known by various names throughout the United Kingdom.
Scotland
Each of Scotland’s 32 Unitary Authorities are further sub-divided into areas known as Wards.
- Boundaries Scotland
- National Library of Scotland Boundaries Viewer
- Ordnance Survey Election Maps
- Boundary-Line™ on Digimap OS Data Download (UofG staff/students) (GIS software required)
England
England has 9 Regions, which are further sub-divided to make up England’s local authority areas.
- Regions Ordnance Survey Election Maps
The local authority areas are variously named as Unitary Authorities, Counties, Metropolitan Districts, Metropolitan Borough Councils, District Councils, and London Boroughs. Some of these areas are sub-divided into areas known as wards.
- Ordnance Survey Election Maps
- Boundary-Line™ on Digimap OS Data Download (UofG staff/students) (GIS software required)
Some of the local authority areas in England are parished, the parish being the lowest tier in local government hierarchy.
- Office for National Statistics Open Geography Portal
- Drop-down Boundaries > Administrative Boundaries > Parishes
Wales
Each of Wales’ 22 Unitary Authorities are further sub-divided into areas known as Wards and Communities.
- Ordnance Survey Election Maps
- NHS Wales: Interactive Geographies (Local Authorities)
- Welsh Government: DataMapWales (Community Wards)
Northern Ireland
Each of Northern Ireland’s 11 Local Government Districts are further sub-divided into areas known as Wards.
- Ordnance Survey of Northern Ireland
- Local Government Districts
- Ordnance Survey of Northern Ireland SpatialNI
- Select Spatial NI Map Viewer
- choose Add data from icons at the top right
- + Click to add data
- Search for ‘OSNI – Local Government Districts'
- Select Spatial NI Map Viewer
- Wards
- Ordnance Survey of Northern Ireland SpatialNI
- Select Spatial NI Map Viewer
- choose Add data from icons at the top right
- + Click to add data
- Search for ‘OSNI – Wards'
- Select Spatial NI Map Viewer
NHS Health Boards
Scotland
Scotland has 14 NHS boards
- Scottish Government Spatial Data
- Select Map (top left)
- + (top right) to add a layer. Search for layer 'NHS Health Boards'
- Select + OGC View Service to add layer to map
- NHS region and areas Digimap Ordnance Survey (UofG staff/students) (GIS software required)
- Download Data > Boundary and Location Data > Code-Point® with Polygons
England
England has 36 Integrated Care Systems (ICSs) and Integrated Care Boards (ICBs) There is one ICB in each ICS area. (These replaced 106 Clinical Commissioning Groups (CCGs) on 1 July 2022.)
- Office for National Statistics: Integrated Care Boards (July 2022 onwards)
- Office for National Statistics: Health Boundary Viewer Map
- Drop-down Boundaries (top left) > Health Boundaries
- NHS region and areas Digimap Ordnance Survey (UofG staff/students) (GIS software required)
- Download Data > Boundary and Location Data > Code-Point® with Polygons
Wales
Wales has 7 Local Health Boards (LHBs)
- Office for National Statistics: Health Boundary Viewer Map
- Drop-down Boundaries (top left) > Health Boundaries
- NHS Wales: Interactive Geographies
- NHS region and areas Digimap Ordnance Survey (UofG staff/students) (GIS software required)
- Download Data > Boundary and Location Data > Code-Point® with Polygons
Northern Ireland
Northern Ireland has 5 Health and Social Care (HSC) Trusts.
- Ordnance Survey of Northern Ireland SpatialNI
- Select Spatial NI Map Viewer
- choose Add data from icons at the top right
- + Click to add data
- Search for ‘Health trust Boundaries’
- Select Spatial NI Map Viewer
- Northern Ireland Statistics and Research Agency: Maps of Health and Social Care Trusts
Contact us
If you require any help with boundary mapping, please contact the Maps, Official Publications and Statistics Unit.