This is a very hard question - my Priest told me that we shouldn't think in numbers. However, most estimates are between 250 million to 350 million. Other estimates are much higher including people...
There were 4,541 bishops in the Church in the year 2000. That grew to 5,002 in the year 2008.
Bishop Blake pastors only one church with two locations West Angeles C.O.G.I.C (Compton, CA) & West Angeles Cathedral C.O.G.I.C. (Los Angeles, CA)
There are over 300 million members of the Eastern Orthodox Church
Eucumenical patriarch of Constantinople Vartholomaios