Gera Tools

UN Member State Reference

All 193 UN member states with admission year and region.

Searchable reference of all 193 United Nations member states with year of admission and their UN regional group, from the 51 founding members of 1945 to the present.

How many member states does the UN have?

The United Nations has 193 member states as of 2026. The most recent to join was South Sudan in 2011 after its independence.

The 193 member states of the United Nations

The United Nations has 193 member states. This reference lists each member with its year of admission and the informal UN regional group it belongs to, with a live search and region filter.

How it works

Each state carries an admission year — 1945 for the 51 founding members who signed the Charter, and the actual year of admission for later joiners — and one of five regional-group tags (African, Asia-Pacific, Eastern European, GRULAC, and WEOG). These groups are not geographic in a strict sense; for example several non-European states sit in WEOG. The filter narrows by group and the search box matches on country name.

Notes and example

  • The UN began with 51 founding members on 24 October 1945.
  • South Sudan, admitted in 2011, is the newest member state.
  • Regional groups determine rotating seats on bodies like the Security Council and Human Rights Council.
  • Observer entities (Holy See, State of Palestine) are not counted as members.