Section I. Religious Demography
The U.S. government estimates the total population at 9.6 million (July 2017 estimate). According to a January 2016 survey by the state Information and Analytical Center of the Presidential Administration, approximately 53 percent of the adult population belongs to the BOC and 6 percent to the Roman Catholic Church. Eight percent of the adult population is atheist, and 22 percent is uncertain. Smaller religious groups together constituting approximately 2 percent of the population include Jews; Muslims; Greek Catholics (“Uniates”); Old Believers (both those who practice their faith with priests, usually termed “priestist,” and those who practice their faith without priests, usually termed “priestless”); and other Orthodox groups in addition to the BOC. This 2 percent also includes Lutherans, Jehovah’s Witnesses, Apostolic Christians, Presbyterians and other Protestant groups, Armenian Apostolics, Latin Catholics, ISKON, Bahais, members of The Church of Jesus Christ of Latter-day Saints (Mormons), and Buddhists. Jewish groups state there are between 30,000 and 40,000 Jews. Ethnic Poles, who constitute approximately 3 percent of the population, tend to be Roman Catholic.