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Biggest Cities Starting With I

In the entire world there are six urban areas starting with the letter I that have a population over 1,500,000. Can you name them?
Urban area population, not city proper
According to citypopulation.de, January 2024
Quiz by GeoPunk
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Last updated: March 24, 2024
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First submittedFebruary 13, 2012
Times taken16,217
Average score50.0%
Rating4.16
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Keep scrolling down for answers and more stats ...
Country
Population
City
Turkey
15.9 mil
Istanbul
Turkey
3.80 bil
Rawalpindi / Islamabad
India
3.63 mil
Indore
Iran
3.38 mil
Isfahan
Nigeria
3.33 mil
Ibadan
Turkey
3.00 mil
Izmir
United States
2.10 mil
Indianapolis
19 Comments
+2
Level 48
May 9, 2014
Short list.
+1
Level 79
Jul 13, 2015
Illoilo City in the Philippines?
+2
Level 53
Feb 14, 2023
not quite big enough
+1
Level 65
Nov 20, 2016
How did more people get Ibadan than Indore?
+5
Level 75
Sep 9, 2018
because Indore is behind a lot of most indian populated city whereas Ibadan is top 5 in Nigeria
+1
Level 79
Dec 7, 2021
Ibadan is bigger than Indore so why should it not be better known?
+1
Level 47
Apr 25, 2024
I have no clue what an Indore is. Ibadan? Oh, an African city
+1
Level 66
Jan 15, 2022
Anybody else guess Iran City? 🤣
+1
Level 47
Apr 25, 2024
no
+18
Level 91
Mar 25, 2024
Wrong country for Rawalpindi
+9
Level 71
Mar 26, 2024
Also I'm pretty sure Rawalpindi doesn't have 3.8 billion people
+4
Level 37
Mar 27, 2024
You've clearly never heard about Rawalpindi's secret underground city...
+4
Level 71
Mar 27, 2024
TIL half of the world secretly lives in Rawalpindi / Islamabad
+2
Level 59
Apr 7, 2024
Who would've thought Turkey had a big enough area to hold all these people in only one city
+1
Level 68
Nov 13, 2024
Especially a city that's not in Turkey
+8
Level 53
Apr 5, 2024
Two mistakes:

Rawalpindi / Islamabad is not in Turkey, it is a city in Pakistan.

And also you mentioned 3.8 Billion as its population instead of million

+1
Level 47
Apr 25, 2024
What exactly lead you to place Islamabad there?
+1
Level 55
Oct 22, 2024
Islamabad and Rawalpindi are in Pakistan not Turkey lmao
+1
Level 56
Nov 15, 2024
3.8 BILLION PEOPLE?!?!?!??!