Parliament and elections

May 2021 elections: Results and analysis

A series of briefings on the May 2021 elections from the House of Commons Library.

Constituency boundary reviews and the number of MPs

Parliamentary constituency boundaries are reviewed periodically by independent Boundary Commissions. This House of Commons Library briefing summarises the current rules and procedures for boundary changes and how they have changed over time. It also gives an overview how the number of MPs has reached the current level of 650.

• Elections

Parliamentary boundary reviews: public consultations

Constituencies are reviewed periodically by independent Boundary Commissions, one for each part of the UK. This briefing outlines how the public can get involved in the consultation stages.

• Elections

Government

Elections

Parliament

Devolution

Local government