Syrians in Turkey

Syrians in Turkey includes Turkish citizens of Syrian origin, Syrian refugees, and other Syrian citizens resident in Turkey. Istanbul, the most populous city in Turkey, hosts the highest number of Syrians (approximately 495,000 registered people).
History.
Syrians in Turkey include migrants from Syria to Turkey, as well as their descendants. The number of Syrians in Turkey is estimated at over 3.6 million people as of March 2020, and consists mainly of refugees of the Syrian Civil War.
In 2017, Syrian citizens accounted for 24% of all work permits granted to foreign nationals, making Syrians the largest single group of foreign nationals with work permits.
Following the Turkish military intervention in the Afrin District in Northern Syria against the Kurdish YPG militia, some Turkish politicians have suggested that Syrian refugees in Turkey should be repatriated to Syria.
According to news releases in 2019; there is 405,521 Syrians born in Turkey since 2011, 79,820 Syrians who got Turkish citizenship, approximately 329,000 Syrians who returned to Syria, 31,185 Syrians who has working permit, and 15,159 companies which has at least one Syrian company member.
Ethnic groups.
Syrians living in Turkey are formed of various ethnic and religious groups. The majority are Arabs (including Palestinians), Syrian Turkmen and Syrian Kurds. 
Assyrians.
Some Assyrians who have fled from ISIL have found temporary homes in the city of Midyat. A refugee center is located near Midyat, but due to there being a small Assyrian community in Midyat, many of the Assyrian refugees at the camp went to Midyat hoping for better conditions than what the refugee camp had. To their supine, many refugees were in fact given help and accommodations by the local Assyrian community there, perhaps wishing that the refugees stay, as the community in Midyat is in need of more members.
Turkmen.
By December 2016 the Turkish Foreign Ministry Undersecretary stated that Turkey opened its borders to 500,000 Syrian Turkmen.
In 2020 the "Voice of America" reported that 1,000,000 Syrian Turkmen (including descendants) who are living in Turkey are requesting to become Turkish citizens.