Kurds, or the Kurdish people, are an Iranian ethnic group from West Asia. They are indigenous to Kurdistan, which is a geographic region spanning southeastern Turkey, northwestern Iran, northern Iraq, and northeastern Syria. Consisting of 30–45 million people, the global Kurdish population is largely concentrated in Kurdistan, but significant communities of the Kurdish diaspora exist in parts of West Asia beyond Kurdistan and in parts of Europe, most notably including: Turkey's Central Anatolian Kurds, as well as Istanbul Kurds; Iran's Khorasani Kurds; the Caucasian Kurds, primarily in Azerbaijan and Armenia; and the Kurdish populations in various European countries, namely Germany, France, Sweden, and the Netherlands.