>>17600417>it's actually like 70% Lutheran.In Iceland, as in several European countries, you're born into the state church and have to either be removed by your parents or by your own choice at age 18, which involves booking an appointment at a government office and filling out paperwork. So, yes 70% of Icelanders are legally part of the Church of Iceland, but that doesn't mean that they're religiously Lutheran as the abysmal church attendance demonstrates.
In terms of actual religiosity, it's in the toilet in general, more or less by the state's design. This is the case with all religions, including Asatru and Buddhism, which other than Lutheranism are the only two religions that Icelanders really participate in (and even then, Asatru and Buddhism in Iceland are driven by the laity). The Catholic Church in Iceland only really exists to cater to Filipinos and agitate for the importation of refugees.