Switzerland is set to vote on a landmark proposal that would cap the country’s population and trigger stricter immigration controls, marking a significant test for a nation long known for its openness to foreign investment and the free movement of people.

The referendum comes after Switzerland’s population grew by roughly 10% over the decade leading up to the end of 2025, reaching just over 9.1 million residents. Demographic trends have also shifted, with the number of people aged over 65 now exceeding those under 20 for the first time. Meanwhile, both net migration and birth rates declined last year.

Switzerland’s attractive business environment, characterized by relatively low taxes and economic stability, has helped draw major multinational corporations, including consumer goods giant Nestlé and pharmaceutical company Novartis, along with leading firms in finance, technology and luxury goods. The country also boasts one of the highest concentrations of billionaires globally and maintains a strong GDP per capita compared with many advanced economies.

According to official figures, 41% of Switzerland’s population had a migration background at the end of 2024, including immigrants and their Swiss-born children. First-generation immigrants account for 32.5% of permanent residents. Approximately 1.4 million European Union citizens live in Switzerland, representing about 16% of the population, while another 340,000 commute daily from neighboring EU countries for work.

Recent polling suggests the vote could be closely contested, with 52% of respondents opposed to the proposal and 45% in favor.

What the Proposal Would Do

If approved, the measure would require Switzerland’s Federal Council and Parliament to implement policies aimed at limiting population growth through 2050.

Under the plan, stricter immigration controls would automatically be introduced if the country’s population exceeds 9.5 million at any point during the next 24 years. Programs related to asylum and family reunification would likely face the earliest restrictions.

Should Switzerland’s population surpass 10 million, the proposal could also pave the way for ending the country’s freedom-of-movement agreement with the European Union.

Although Switzerland is not an EU member, it participates in the border-free Schengen zone and maintains agreements that allow Swiss and EU citizens to live and work across each other’s territories, provided they meet employment or income requirements.

Debate Over Growth and Economic Impact

Supporters of the initiative, led by the right-wing Swiss People’s Party (SVP), argue that rapid population growth is placing increasing pressure on housing, public services, education and the labor market.

The party has urged voters to support the measure as a way of managing what it describes as unsustainable growth. SVP lawmaker Piero Marchesi said the proposal would still allow approximately 40,000 people to immigrate to Switzerland annually while addressing strains on infrastructure and living costs.

Business groups and major employers, however, warn that significant restrictions on immigration could undermine Switzerland’s competitiveness and economic performance.

Corporate leaders argue that access to international talent remains critical as the country navigates slower economic growth, currency pressures, weak inflation and broader global trade challenges.

The outcome of Sunday’s vote is expected to have far-reaching implications for Switzerland’s immigration policy, labor market and relationship with the European Union in the years ahead.