Most people in Finland are at least nominally members of a Christian church. There are presently two national churches (as opposed to state churches): the Evangelical Lutheran Church of Finland, which is the primary state religion and has a membership of about three quarters of the population, and the Finnish Orthodox Church, to which about one percent of the population belongs. Those who officially belong to one of the two state churches have part of their taxes turned over to their church. People can also belong to one or more registered religious communities (there were 96 in 2013). Other religions practiced in Finland include Islam (about 60,000 in 2013) and Judaism. Prior to Christianisation beginning the 11th century, Finnish paganism was the primary religion.
Most Finns are members of the Evangelical Lutheran Church of Finland (73.0%). With approximately 4.1 million members out of a total population of 5.5 million, the Evangelical Lutheran Church of Finland is one of the largest Lutheran churches in the world, although its membership has been on the decline recently. The number of church members leaving the Church saw a rapidly increase in the fall of 2010. This was at least partly due to uproar caused by statements regarding homosexuality and same-sex marriage - perceived to be intolerant towards LGBT people - made by a conservative bishop and a politician representing Christian Democrats in a TV debate on the subject. The second largest group - and a rather quickly growing one - of 24.3% by the end of 2015 of the population is non-religious. A small minority belong to the Finnish Orthodox Church (1.1%) and to the Roman Catholic Church (12,434 people or 0.2% of the population).