Kurdish population the figure at 10 to 15 million Kurds in Turkey. Kurds mostly live in Northern Kurdistan, in Southeastern and Eastern Anatolia. But large Kurdish populations can be found in western Turkey due to internal migration. According to Rüstem Erkan, Istanbul is the province with the largest Kurdish population in Turkey. From the 7 million Iranian Kurds, majority who are Sunni. Shia Kurds inhabit Kermanshah Province, except for those parts where people are Jaff, and Ilam Province Province; as well as some parts of Kurdistan, Hamadan and Zanjan provinces. The Kurds of Khorasan Province in northeastern Iran are also adherents of
Turkish people remaining 0.2% is mostly Christian and Jewish. There are also some estimated 10 to 15 million Alevi Muslims in Turkey. Christians in Turkey include Assyrians/Syriacs, Armenians, and Greeks. Jewish people in Turkey include those that descend from Sephardic Jews who escaped Spain in 15th century and Greek-speaking Jews from Byzantine times. There is an ethnic Turkish Protestant Christian community most of them came from recent Muslim Turkish backgrounds, rather than from ethnic minorities. According to KONDA research, only 9.7% of the population described themselves as "fully devout," while 52.8% described themselves as "religious." 69.4% of the respondents reported that they