Tornio (Finnish: [ˈtornio]; Swedish: Torneå; Northern Sami: Duortnus [ˈtuo̯rtnuːs]; Inari Sami: Tuárnus) is a city and municipality in Lapland, Finland. The city forms a cross-border twin city together with Haparanda on the Swedish side. The municipality covers an area of 1,348.83 square kilometres (520.79 sq mi), of which 161.59 km2 (62.39 sq mi) is water. The population density is 17.67 inhabitants per square kilometre (45.8/sq mi), with a total population of 21,002 (31 August 2024).
Tornio is unilingually Finnish with a negligible number of native Swedish speakers, although this does not count vast numbers of bilinguals who speak Swedish as a second language, with an official target of universal working bilingualism for both border municipalities.
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