Swiss voters rejected a constitutional referendum that would have capped the country's permanent resident population at under 10 million through 2050, the Swiss Federal Council announced on June 15. The initiative, brought by the right-wing Swiss People's Party, or SVP, was defeated 54.79% to 45.21% on a turnout of 58.86%.

Switzerland's population has grown from roughly 7.3 million in 2002 to over 9 million in 2026 — a 23% rise driven largely by immigration from EU countries under the free movement agreement. The SVP, Switzerland's largest political party, argues this has placed unsustainable pressure on housing, infrastructure, public services and the environment. Switzerland's seven-member coalition government, which includes the SVP, formally opposed the measure, cautioning that it would have undermined economic stability and prosperity. Though not an EU member, Switzerland participates in the bloc's free movement through bilateral agreements covering roughly two-thirds of its exports.