SE — Sweden

Sweden is a Nordic country in Northern Europe, known for its innovation, design, social welfare system, and global brands like IKEA, Spotify, Volvo, and Ericsson. Stockholm, the capital, is built across 14 islands and is one of Europe's most important tech hubs. The Swedish Krona (SEK) is the currency. For developers, the SE country code maps to the sv-SE locale for Swedish. The .se domain is well-established, and +46 is the dialing code. Sweden is one of the world's most cashless societies — the Riksbank has explored a digital currency (e-krona) and cash usage is extremely low. Swedish personnummer (personal identity numbers) are a fundamental part of digital identity with specific format and Luhn algorithm validation. Swedish formatting uses comma for decimals and space for thousands. Sweden's tech ecosystem is disproportionately large for its population, having produced numerous unicorn startups. The Swedish language uses å, ä, ö characters that sort at the end of the alphabet, not as variants of a, o.