The Boundary Commission is responsible for reviewing Parliamentary constituency boundaries in Northern Ireland on the basis of the Parliamentary Constituencies Act 1986, as amended. The Commission has now commenced work on the 2023 Review of Parliamentary Constituencies , due to report by July 2023.

When the Parliamentary Constituencies Act 2020 was passed in December 2020, it amended the 1986 Act and brought the previous 2018 Review to a close without implementation. Archived publications and news from the 2018 Review can be found at Archived Publications and Archived News.

You can also view information from the 5th (2007) and 6th (2013) Periodical Reviews, together with archived corporate publications, via the link below: