Does 2010 US Orthodox Census tell us about all Orthodox Christians living in the United States?
The answer to this question is “No.” The 2010 US Orthodox Census provided information only on persons who are – at least marginally – involved in the Church life and, therefore, are known to the local Orthodox parishes. Similarly to many other Christian denominations in America, there can be significant number of persons who were once baptized in the Orthodox Church and who still consider themselves as being Orthodox Christians, but who do not participate and attend at all. In other words, the 2010 US Orthodox Census was Census of members of US Orthodox Christian Churches rather than Census of the entire Orthodox Christian population in America.