Source Data Reference for:

City = Istanbul
Time = 2000

City Year Size Size Comment Year Comment Author Title Location
Istanbul1975 3,200,000Tertius ChandlerFour thousand years of urban growthp511
Istanbul1994 7,615,500n/aBritannica book of the year: world data
Istanbul2010 10,525,000United NationsWorld Urbanization Prospects Report
Istanbul2011 13,275,000n/ahttp://demographia.com/
Istanbul2012 13,576,000n/aDemographia Wolrd Urban Areas 8th Annual Edition Version 2