Election Glossary

We provide explanations and background information on elections, voting rights and digital democracy


A constituency is a geographically defined area in which voters elect a representative (or representatives, in a multi-member constituency) to a legislative body such as a parliament. Constituencies are also known as electoral districts.

There are currently 650 parliamentary constituencies in the UK, each of which has one representative who sits in the House of Commons as a Member of Parliament. Constituency boundaries are reviewed at regular intervals by Boundary Commissions in each of the four UK nations. These Commissions recommend boundary changes as a result of a population change or changes in local government boundaries. The recommended changes must be agreed upon by both Houses of Parliament.

See also: Parliament, Prime Minister, General Elections

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