Electoral Calculus has a wide variety of maps and mapping tools to help you understand electoral geography, predictions, and new boundaries.
Browse our maps from the choices below.
An interactive map of the new seat boundary proposals for 2023. The map shows all the new seats, overlaid on Open Street Map.
The map is fully browsable, and clicking on a new seat will give full details of the new seat and its politics.
This unique map can show both true geography and also an equal-area for a more representative view. It also shows the last election, our/your predicted results, and the changes on a seat-by-seat basis.
Uniquely detailed Data Map of the whole country showing twelve political and social measures including party vote in 2019, 2017 and 2015, left/right and international/national attitudes, and EU referendum result.
All available at four geographic levels of detail: current seats, proposed new seats, wards, and individual neighbourhood localities.
National Seat Map
This browsable map shows all of the current seats with the boundaries and seat markers coloured for the winning party, overlaid on Open Street Map.
Clicking on a seat shows the predicted winner, using current opinion polls, and also gives the option of getting full details about the seat.
An interactive timeline map of all general elections since 1955, showing how the country voted area-by-area, with political commentary and overview of swings and trends.
Travel through British electoral history either going forwards and backwards.
A popular classic map, this static Area Map shows the twelve official areas of the UK, along with the traditional county boundaries.
Note this map is 380kB in size.
This map is a smaller-sized version of the Large Area map above. It includes the full definition of the twelve areas in terms of both historic counties and district, borough and unitary councils.
This map gives the definitions of the twenty Electoral Calculus regions, which are designed for long-term political analysis, and are distinct from any administrative boundaries.
An interactive map of the now abandoned new seat boundary proposals for 2018. The map shows all the new seats, overlaid on Open Street Map.
The map is browsable and has links to details of each seat.