In 1950, 6% of Switzerland’s nearly 5 million residents were foreign. By 2015, 24.6% of the nation’s 8.3 million inhabitants, more than 2 million, were.
The vast majority of foreigners in Switzerland in 2015 were from Europe (84.6%). Relatively smaller percentages were from Asia (6.7%), Africa (4.6%), Latin America (2.6%), North America (1.3%) and Australasia (0.2%).
By nationality, the largest percentages of foreigners were Italian (16%), German (15%), Portuguese (13%) and French (6%).
The level of diversity was even more marked at a family level. In the years from 2011 to 2013, of the 3.5 millions households in Switzerland, 39% had one or more foreign family member. Half of children aged from 0 to 24 lived in households with at least one foreign parent. And among those with children under 6 the percentage rose to 54%.
At the same time the number Swiss over 15 who had both a mum and a dad who were Swiss citizens dropped from 70% to 63% between 2003 and 2015.
By 2015, the number dual nationals in Switzerland reached 753,400, 9% of Switzerland’s permanent resident population. This figure includes 240,700 dual nationals who were born Swiss. The largest groups of foreign-born dual nationals were Italians, French, German, Turkish and Serbian.