Had the Yes side won, any negotiated accession treaty would have been put to a further vote. Prime Minister Kristrún Frostadóttir, who had campaigned for renewed talks, announced after the vote that negotiations would not resume during this parliamentary term.

The result reveals a clear geographical divide across the island. A majority in Reykjavik voted for renewed talks. In the Reykjavik North constituency, support stood at 57.5%, while in Reykjavik South it was 54.5%. Outside the capital, however, the No side prevailed. The industries that have long been at the heart of Iceland's EU debate are concentrated in those areas.

Outcome Was No Surprise

Skepticism about membership was already evident before the vote. A Gallup poll in June found that among respondents with a firm position, 54% opposed EU membership and 46% supported it. Support was also significantly higher in Reykjavik.

In rural regions, fishing tops the list of concerns about the EU. Fish and other marine products accounted for 38.9% of goods exports in 2025, according to Statistics Iceland.

Iceland manages its fish stocks independently and allocates catch quotas under its own system. EU membership would in principle require the country to adopt the bloc's Common Fisheries Policy.

This policy is not covered by the European Economic Area (EEA), which has given Iceland access to the EU single market since 1994. The same applies to the Common Agricultural Policy.

Through the EEA, Iceland adopts numerous EU single-market rules, but fisheries and agriculture remain largely outside its scope.

Close Ties Without Membership

The country's special status shaped the campaign. The EU is Iceland's largest trading partner. In 2025, 53.6% of Iceland's trade in goods was with the bloc, while 66.5% of its goods exports went there.

Iceland is part of the Schengen Area, where routine checks at internal borders have largely been abolished. It also belongs to the European Free Trade Association (EFTA). The No camp therefore argued that the country already enjoys many benefits of European integration without handing Brussels control over fisheries and agriculture.

Supporters countered that Iceland must adopt numerous EU rules through the EEA without having the same say in shaping them as a member state. They also pointed to the Icelandic krona, high interest rates and exchange-rate volatility. Joining the EU would eventually open the way to adopting the euro.

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The International Monetary Fund said in July that EU membership and subsequent adoption of the euro could deepen trade and financial integration and reduce exchange-rate risks. At the same time, Iceland would lose its independent monetary and exchange-rate policy.

Rural Iceland Remains Skeptical

In rural parts of the island, agriculture was a key issue alongside fishing. Icelandic farmers operate under difficult climatic conditions and are protected by tariffs, import rules and government support.

EU membership would require the country to align its agricultural policy with common European rules. During the campaign, concern about stronger competition from food imports was linked to questions of food security and the viability of rural farms.

The issue is rooted in a long-running debate over sovereignty. Iceland became sovereign in 1918 and a republic in 1944. Control over its own fishing grounds carries particular symbolic weight.

In the three so-called Cod Wars between 1958 and 1976, a series of disputes with Britain over fishing limits, Iceland succeeded in extending its fishing zone. During the latest campaign, EU opponents warned against ceding decision-making power over fish stocks, agriculture, energy and other resources to European institutions.

This argument also played a central role in Iceland's parliament.

Why the EU Question Returned

The EU question had surfaced before in response to a crisis. After the collapse of Iceland's banking system in 2008 and the plunge in the krona, the country applied for membership in July 2009. Talks began in 2010.

By 2013, 27 negotiating chapters had been opened and 11 provisionally closed. Following a change of government, Reykjavik put the talks on ice. In 2015, Reykjavik told the EU that Iceland should no longer be considered a candidate country.

The Frostadóttir government revived the issue after the 2024 election. The war in Ukraine, the growing strategic importance of the Arctic and remarks by US President Donald Trump about Greenland gave the debate fresh impetus.

Supporters also pointed to the greater security and geopolitical stability they believed EU membership could offer. Those arguments failed to sway voters, however.

Iceland is a founding member of NATO and is closely tied to the United States on security matters. Through the EEA, it is also one of the EU's closest economic partners outside the bloc. The referendum leaves that status quo intact.