Statistics on the Size and Composition of the House of Lords: December 2017

This briefing provides summary data on the size and composition of the House of Lords. The information is taken from the House of Lords registry database and is correct as at 11 December 2017.

Key findings include: 

  • The ‘absolute’ membership was 824; 
  • The ‘actual’ eligible membership was 798; 
  • The mean age of the absolute membership was 69; 
  • There were 216 female Members (26 percent); 
  • The average length of membership was 14 years; and 
  • Since 1 January 2015, 82 Life Peers have been created and 114 Members have left the House. 

The party and group affiliation of the ‘actual’ membership is represented in the following graph: 

 Size of House Chart

The briefing also contains the following information: age of the current membership by year bands; length of membership by year bands; average ages of those joining and leaving the House and the reason for cessation of membership.

  • Lords Research Briefing LLN-2017-0098
  • Author: James Goddard
  • Topics: House of Lords