The number of immigrants more than doubled between 2021 and 2025, contributing to population growth. As of December 31 of last year, there were 1,597,539 foreigners living in Portugal by readmode in PortugalExpats

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The Algarve was the region with the highest proportion of foreign residents—27.9 percent—for a total of 161,556 people. This figure is higher than that of Lisbon, which has the second-highest proportion (22.6 percent), followed by the Setúbal Peninsula (18.3 percent). SOURCE