Central Ukraine
According to a 2016 survey of religion in Ukraine held by the Razumkov Center, approximately 73.5% of the population of central Ukraine declared to be believers, while 4.8% declared to be non-believers, and 2.6% declared to be atheist. Of the total population, 86.5% were Christians (76.7% Eastern Orthodox, 6.5% simply Christians, 1.9% Latin Rite Catholics, 1.0% members of various Protestant churches, and 0.4% members of the Ukrainian Greek Catholic Church), 0.3% were Jewish, and 0.1% were Muslims. Not religious and other believers not identifying with any of the listed major religious institutions constituted about 12.8% of the population.
Europe
The second most popular religion is Islam (6%) concentrated mainly in the Balkans and eastern Europe (Bosnia and Herzegovina, Albania, Kosovo, Kazakhstan, North Cyprus, Turkey, Azerbaijan, North Caucasus, and the Volga-Ural region). Other religions, including Judaism, Hinduism, and Buddhism are minority religions (though Tibetan Buddhism is the majority religion of Russia's Republic of Kalmykia). The 20th century saw the revival of Neopaganism through movements such as Wicca and Druidry.