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.
Parliamentary Constituencies
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
- choose Add data at the top right
- Search for ‘OSNI – Parliamentary Constituencies’
- 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
- choose Add data at the top right
- Search for ‘OSNI – Parliamentary Constituencies’
- 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 form of local government.
Wales
Each of Wales’ 22 Unitary Authorities are further sub-divided into areas known as Wards and Communities.
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
- choose Add data at the top right
- Search for ‘OSNI – Local Government Districts’
- Wards
- Ordnance Survey of Northern Ireland SpatialNI
- choose Add data at the top right
- Search for ‘OSNI – Wards’
NHS Health Boards
Scotland
Scotland has 14 NHS boards
- Scottish Government Spatial Data
- NHS region and areas with Code-Point® with polygons on Digimap OS Data Download (UofG staff/students) (GIS software required)
England
England has 106 Clinical Commissioning Groups (CCGs). From July 2022 they will be replaced by Integrated Care Systems (ICSs)
- Office for National Statistics: Integrated Care Boards (July 2022 onwards)
- Office for National Statistics: Health Areas Map
- Office for National Statistics: Health Boundary Viewer Map
- NHS region and areas with Code-Point® with polygons on Digimap OS Data Download (UofG staff/students) (GIS software required)
Wales
Wales has 7 Local Health Boards (LHBs)
- Office for National Statistics: Open Geography Portal
- Office for National Statistics: Health Areas Map
- Office for National Statistics: Health Boundary Viewer Map
- NHS Wales: Interactive Geographies
- NHS region and areas with Code-Point® with polygons on Digimap OS Data Download (UofG staff/students) (GIS software required)
Northern Ireland
Northern Ireland has 5 Health and Social Care (HSC) Trusts.
- Ordnance Survey of Northern Ireland SpatialNI
- choose Add data at the top right
- Search for ‘Health Trust Boundaries’
- 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.