Eastern Orthodoxy by country
Based on the numbers of adherents, the Eastern Orthodox Church (also known as Eastern Orthodoxy) is the second largest Christian communion in the world after the Roman Catholic Church. The most common estimates of the number of Eastern Orthodox Christians worldwide is approximately 200–260 million. The numerous Protestant groups in the world, if taken all together, outnumber the Eastern Orthodox, but they differ theologically and do not form a single communion.
Eastern Orthodoxy in North America
Adherents of Eastern Orthodox Christianity in Canada traditionally belong to several ethnic communities and ecclesiastical jurisdictions (canonical and noncanonical). According to official 2011 census data, Greek Orthodox community constitutes the largest Eastern Orthodox community in Canada, with 220,255 adherents. It is followed by other communities: Russian Orthodox (25,245), Ukrainian Orthodox (23,845), Serbian Orthodox (22,780), Romanian Orthodox (7,090), Macedonian Orthodox (4,945), Bulgarian Orthodox (1,765), Antiochian Orthodox (1,220) and several other minor communities within the scope of Eastern Orthodoxy.