What European country is not a part of the EU?

Norway is not a part of the European Union (EU) because it opted to stay outside the EU through two referendums. The first one took place in 1972 when Norwegian voters rejected joining the EU, and the second one in 1994 when they rejected EEA (European Economic Area) membership. Norway has chosen to maintain a close relationship with the EU through the EEA agreement, which allows it access to the EU’s single market and cooperation in various areas, while still retaining its sovereignty and control over certain policy areas.