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
Water supply and sanitation in Turkey in the largest cities. External cooperation has played and continues to play a major role for water and sanitation in Turkey. Germany, France, the European Union and the World Bank are the major external partners. In 2015, in Turkey, access to water was universal. Regarding sanitation, 95% of the population have access to "improved" sanitation, 98% of the urban population and 86% of the rural population. Subsequently, there are still, approximately, 4 million people without access to "improved" sanitation. Access to water supply and sanitation in Turkey is high. Based on household surveys and census results, the Joint Monitoring Programme