NORTHERN IRELAND
United Kingdom at a glance
Surface: 244 100 km2
Population: 61 612 255 (Eurostat 2009)
Joined the European Union: 1 January 1973
Currency: Pound sterling (GBP)

The United Kingdom joined the European Union in 1973. It has negotiated an 'opt-out' from the euro and is thus not obliged to introduce it.

