Voters in Switzerland have turned down a proposal that would have placed a hard limit on the country’s population, with data from Sunday’s referendum revealing that older citizens and residents of major cities played a decisive role in the outcome.
The initiative, championed by the Swiss People’s Party, was rejected by a margin of 55% to 45% following a closely contested campaign. The debate centered on competing concerns — fears over unchecked immigration on one side, and the risk of Switzerland cutting itself off from Europe on the other.
The Swiss People’s Party, which is the country’s largest political party, had pushed the proposal as a way to address public worries about overcrowding straining public services, driving up crime, and increasing rental costs. Despite the defeat, the party vowed to continue pressing the issue of immigration.
Polling data revealed a clear generational divide in how voters felt about the cap. Among those 65 and older, 60% voted against the measure. Of voters aged 50 to 64, opposition stood at 57%, according to figures published by Swiss newspaper Tages-Anzeiger.
On the other side, voters between the ages of 35 and 49 were the most supportive, with 51% backing the cap. Among the youngest group surveyed — those aged 18 to 34 — support came in at 48%, based on data gathered for online news outlet 20 Minuten/Tamedia by polling firm Leewas.
Political scientist Cloe Jans of polling organization GFS Bern offered some insight into the result, telling 20 Minuten that while many voters sympathized with the goals of the proposal, they were reluctant to see strict numerical limits written into law.
“In geopolitically uncertain times people aren’t keen on experiments and burning bridges unnecessarily,” she said.
The vote came after a difficult stretch for Switzerland in 2025, during which the country faced some of the steepest U.S. tariffs in Europe after President Donald Trump pushed the wealthy nation to reduce its trade surplus with the United States.
Switzerland is also currently working to finalize an agreement with the European Union aimed at strengthening economic ties. Opponents of the population cap used that context in their campaign, running posters featuring an image of a smiling Trump alongside the message: “Breaking with Europe, now of all times?”
Business organizations, the national government, and parliament all came out against the cap, cautioning that it could limit Swiss companies’ ability to draw workers from the EU — a critical source of labor.
A geographic breakdown of the results showed that Switzerland’s largest cities — Zurich, Geneva, Basel, Lausanne, and Bern — firmly rejected the measure. Its strongest backing came from rural, conservative cantons in central Switzerland. The proposal also failed in Valais and Grisons, two lightly populated cantons known for their ski resorts, and generally underperformed in French-speaking parts of the country.
Under the terms of the initiative, Switzerland’s population — currently at 9.1 million — would have been required to stay below 10 million by the year 2050. Once the population hit 9.5 million, the government would have been obligated to tighten immigration restrictions.
