Electoral boundaries shown for Great Britain and Northern Ireland are those in effect at 5 May 2021. For more information, see our Boundary-Line support page.
Find electoral boundaries easily
You can launch a map of Great Britain or a map of Northern Ireland.
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 5 May 2021. For more information, see our Boundary-Line support page.
If you have any queries about election maps, please contact us for assistance.
Read our election maps terms (PDF) for using our Great Britain and Northern Ireland maps.