You can find a detailed UK parliamentary constituencies map at Maproom. Maproom's online map lets you interact with all 650 Parliamentary seats and explore constituencies and MPs with electorate info and links to MPs' voting records. Zoom deep and fly.

Hovering over any map will reveal the constituency name (in the same format as used in the rest of this site) - this will be centred within the constituency, but clicking on the map will show the constituency name at the point clicked.

For each group there are separate charts, maps and tables: (a) Constituency Charts. These charts show how the constituencies have evolved over time with transfers of electors between them. The size of transfer is indicated by the format of the line between constituencies, and very small transfers are omitted.

Constituency Boundaries is a mapping tool that allows you to explore the impact of changes to Parliamentary constituency boundaries that are being proposed as part of the 2018 Boundary Review. Maps are available for each nation and region of the UK showing the current and proposed new boundaries, along with the wards that make them up.