Iceland
Religion

Icelanders have freedom of religion guaranteed under the Constitution, although the Church of Iceland, a Lutheran body, is the state church:

The Evangelical Lutheran Church shall be the State Church in Iceland and, as such, it shall be supported and protected by the State.

Approximately 80 percent of Icelanders legally affiliate with a religious denomination, a process that happens automatically at birth and from which they can choose to opt out. They also pay a church tax (sóknargjald), which the government directs to help support their registered religion, or, in the case of no religion, the University of Iceland.

The Registers Iceland keeps account of the religious affiliation of every Icelandic citizen. In 2017, Icelanders were divided into religious groups as follows:

On March 8, 2021, Iceland formally recognised Judaism as a religion for the first time. Iceland's Jews will have the choice to register as such and direct their taxes to their own religion. Among other benefits, the recognition will also allow Jewish marriage, baby-naming and funeral ceremonies to be civilly recognised.

Iceland is a very secular country; as with other Nordic nations, church attendance is relatively low. The above statistics represent administrative membership of religious organisations, which does not necessarily reflect the belief demographics of the population. According to a study published in 2001, 23% of the inhabitants were either atheist or agnostic. A Gallup poll conducted in 2012 found that 57% of Icelanders considered themselves "religious", 31% considered themselves "non-religious", while 10% defined themselves as "convinced atheists", placing Iceland among the ten countries with the highest proportions of atheists in the world.
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