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Ireland

Ireland has been a member of the European Union since 1 January 1973.

Flag of Ireland
  • EU member
  • Euro area

Relationship with the EU

  1. 1 January 1973Joined
  2. 1 January 1999Adopted the euro

Same enlargement wave · First enlargement (1973)

Data

GDP per capita in purchasing power standards238

Eurostat, 2025. Scale 0 to 260.

Share of the EU population1.2 %

Eurostat, 1 January 2026.

Milestones

  1. 5 May 1949Founding member of the Council of Europe. archive.org
  2. 1972Referendum on EEC membership: 83.1% yes. europarl.europa.eu
  3. 1 January 1973Joins the European Communities. europa.eu
  4. 2001Referendum on the Treaty of Nice (rejected): 46.1% yes. europarl.europa.eu
  5. 2002Referendum on the Treaty of Nice: 62.9% yes. europarl.europa.eu
  6. 2008Referendum on the Treaty of Lisbon (rejected): 46.6% yes. europarl.europa.eu
  7. 2009Referendum on the Treaty of Lisbon: 67.1% yes. europarl.europa.eu

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