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.
Donbass
According to a 2016 survey of religion in Ukraine held by the Razumkov Center, 65.0% of the population in Donbass believe in Christianity (including 50.6% Orthodox, 11.9% who declared to be "simply Christians", and 2.5% who belonged to Protestant churches). Islam is the religion of 6% of the population of Donbass and Hinduism of the 0.6%, both the religions with a share of the population that is higher compared to other regions of Ukraine. People who declared to be not believers or believers in some other religions, not identifying in one of those listed, were 28.3% of the population.