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.
Religion in Tajikistan
The next largest religious community is presumably Russian Orthodox, the historical faith of many Ukrainians as well as Russians. A cathedral in Dushanbe, St. Nicholas, serves the Orthodox community. By the end of the Soviet era, Tajikistan also was home to small numbers of people belonging to other Christian denominations, including Roman Catholics (originally most of them were from German origins, but also Tajiks), Seventh-Day Adventists, and Baptists. There also was a small Armenian minority, most of whose members belonged historically to the Armenian Apostolic (Gregorian) Church. Other religious groups included Zoroastrians and small numbers of Jews and Baha'is. The number of adherents to these minority religions probably decreased sharply in the 1990s because of the wave of emigration from Tajikistan in the early independence period.