Constantinople vilayet

İstanbul
Vilayet of the Ottoman Empire
1878–1922

Population 
• Muslim, 1914
560,434
• Greek, 1914
205,752
• Armenian, 1914
82,880
• Jewish, 1914
52,126
History 
• Established
1878
• Disestablished
1922
Preceded by
Succeeded by
İstanbul Eyaleti
Istanbul Province
Today part ofTurkey

The Vilayet of Constantinople or Istanbul (Turkish: Vilâyet-i İstanbul) was a first-level administrative division (vilayet) of the Ottoman Empire, encompassing the imperial capital, Constantinople (Istanbul).