20% of Swiss people hold dual nationality

It is estimated that more than one in five Swiss has dual nationality and since 2010, the number of Swiss citizens possessing another country's passport has increased by 40 percent, Swiss media reported Sunday.

The report said that a total of 916,000 Swiss citizens residing in the country have dual nationality. In addition, 560,000 Swiss abroad have another passport.

The Swiss NZZ am Sonntag paper cited increased migration as the main reason, saying that an increase in movement of people results in more mixed nationality marriages which in turn results in more dual national offspring.

Extending across the north and south side of the Alps in west-central Europe, Switzerland encompasses a great diversity of landscapes and climates on a limited area of 41,285 square kilometers with the population of about 8 million.