Party Membership & Activism
The decline of party membership across democracies, what members actually do, and new forms of political participation.
The Hollowing Out
Party membership has declined dramatically across established democracies. In the UK, the Conservative Party had approximately 2.8 million members in the 1950s; by 2023, it had roughly 170,000. Similar declines have occurred across Europe. Fewer than 5 percent of citizens in most Western democracies are party members, and active members who attend meetings and canvass voters are a much smaller fraction.
The causes include social change (declining class identity reduces automatic party loyalty), alternative forms of participation (social media, issue-based campaigns, NGOs), and disillusionment with parties as institutions. Younger citizens are particularly unlikely to join parties, preferring to engage through single-issue activism, online campaigns, and protest movements.