Southern Ukraine
According to a 2016 survey of religion in Ukraine conducted by the Razumkov Center, around 65.7% of the population of southern Ukraine declared to be believers in any religion, while 7.4% declared to be non-believers, and 3.2% declared to be atheists and agnostics. the study also found that 77.6% of the total Southern Ukraine population declared to be Christians (71.0% Eastern Orthodox, 5.1% simply Christians, 0.5% Latin Rite Catholics, 0.53% members of various Protestant churches, 0.5% members of the Ukrainian Greek Catholic Church), and 0.5% were Jewish. Not religious and other believers not identifying with any of the listed major religious institutions constituted about 24.7% 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.