Iran: Library of Congress, Library of Congress – Federal Research Division. "Ethnic Groups and Languages of Iran"(PDF). Retrieved 2009-12-02. (Persian and Caspian dialects-65% Kurdish 8%-Luri/Bakhtiari 5%- Baluchi 4%):80% of the population or approximately 63 million people.
Afghanistan: CIA Factbook Afghanistan: unting Pashtuns, Tajiks, Baluchs, 21 million
Tajiks of Central Asia counting Tajikistan and Uzbekistan 10–15 million
Kurds Syria, Lebanon and Iraq based on CIA factbook estimate 18 million
Zazas of Turkey, based on CIA factbook estimate 4 million
Ossetians, Talysh, Tats, Kurds of the Caucasus and Central Asia: 1–2 million based on CIA factbook/ethnologue.
Tajiks of China: 50,000 to 100,000
Iranian speakers in Bahrain, the Persian Gulf , Western Europe and USA, 3 million.
Pakistan counting Baluchis+Pashtus+Afghan refugees based on CIA factbook and other sources: 71 million.
↑The Ossetians o the Caucasus are Orthodox Christians
↑R.N Frye, "IRAN v. PEOPLE OF IRAN in Encycloapedia Iranica. "In the following discussion of "Iranian peoples," the term "Iranian" may be understood in two ways. It is, first of all, a linguistic classification, intended to designate any society which inherited or adopted, and transmitted, an Iranian language. The set of Iranian-speaking peoples is thus considered a kind of unity, in spite of their distinct lineage identities plus all the factors which may have further differentiated any one group’s sense of self."
↑The Kurds: A Concise Handbook by Mehrdad R. Izady
↑Historical Dictionary of the Kurds by Michael M. Gunter
↑The Encyclopedia Americana: The International Reference Work, Volume 15