Inari, Finland languages as their mother tongue. Ninety-seven inhabitants were native speakers of other languages. Only about 1%, 78 persons, were citizens of countries other than Finland in 2010. Inari is the largest municipality in Finland. Located in Lapland, it covers an area of , of which is water. With an area of , Lake Inari is the third largest lake in Finland, smaller than the country's second largest Lake Päijänne. Finland's largest National Park Lemmenjoki is partly located in Inari, as is the Urho Kekkonen National Park. Vast parts of the municipality are designated wilderness areas: Hammastunturi, Muotkatunturi, Paistunturi, Kaldoaivi, Vätsäri,
Arctic Circle occur, in principle, exactly once per year: at the June and December solstices, respectively. However, because of atmospheric refraction and mirages, and also because the sun appears as a disk and not a point, part of the midnight sun may be seen on the night of the northern summer solstice up to about 50 minutes (′) () south of the Arctic Circle; similarly, on the day of the northern winter solstice, part of the sun may be seen up to about 50′ north of the Arctic Circle. That is true at sea level; those limits increase with elevation above sea