Cities That Start With I

41 cities Places Checked 9 Oct 2026

These cities that start with I are the world's big cities with 300,000 or more people, 41 in all, ranked by population. A separate list covers 11 US cities that start with I, followed by capital cities.

I has 41 cities, and Turkey is well represented. Istanbul spans two continents, Europe and Asia, and Izmir sits on the Aegean coast. Elsewhere you will find Incheon in South Korea, Isfahan in Iran and Irkutsk in Russia, near Lake Baikal.

US choices include Indianapolis, Irvine in California and Iowa City. Notice that several I cities start with Iz or Is, a pattern that helps when your memory goes blank. Indianapolis is a long word but easy to spell once kids split it into Indiana and polis.

Big cities starting with I: 41
Largest: Istanbul Turkey
Largest in the US: Indianapolis Indiana

Cities that start with I around the world

#	City	Country	Population
1	Istanbul	Turkey	15.7 million
2	Ibadan	Nigeria	3.6 million
3	Incheon	South Korea	3.0 million
4	Izmir	Turkey	2.9 million
5	Indore	India	2.0 million
6	Iztapalapa	Mexico	1.8 million
7	Isfahan	Iran	1.5 million
8	Ilorin	Nigeria	1.1 million
9	Indianapolis	United States	887,642
10	Ibb	Yemen	771,514
11	Ipoh	Malaysia	759,952
12	Izhevsk	Russia	648,213
13	Irkutsk	Russia	623,869
14	Islamabad	Pakistan	601,600
15	Itabashi	Japan	584,483
16	Iskandar Puteri	Malaysia	575,977
17	Irbid	Jordan	569,068
18	Ile-Ife	Nigeria	560,000
19	Ibague	Colombia	529,635
20	Ichikawa	Japan	496,676
21	Imus	Philippines	481,949
22	Iloilo	Philippines	473,728
23	Ikare	Nigeria	465,000
24	Ismailia	Egypt	429,465
25	Ivanovo	Russia	406,113
26	Iztacalco	Mexico	384,326
27	Irapuato	Mexico	380,941
28	Ichinomiya	Japan	380,073
29	Iasi	Romania	378,954
30	Iquitos	Peru	377,609
31	Itaquaquecetuba	Brazil	369,275
32	Iseyin	Nigeria	365,300
33	Ijebu Ode	Nigeria	360,000
34	Iwaki	Japan	357,309
35	Iligan	Philippines	342,618
36	Ilesa	Nigeria	325,000
37	Ixtapaluca	Mexico	322,271
38	Islington	United Kingdom	319,143
39	Ikeja	Nigeria	313,196
40	Iligan City	Philippines	312,323
41	Iksan	South Korea	307,000

US cities that start with I

City	State	Population
Indianapolis	Indiana	887,642
Irvine	California	256,927
Irving	Texas	236,607
Independence	Missouri	117,255
Inglewood	California	111,666
Indio	California	87,533
Iowa City	Iowa	74,220
Irvington	New Jersey	61,323
Idaho Falls	Idaho	59,184
Irving Park	Illinois	56,520
Irondequoit	New York	51,692

Capital cities that start with I

Capital	Country
Islamabad	Pakistan

Filter all 41 cities that start with I

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Questions people ask

What is the biggest city that starts with I?

Istanbul in Turkey, with about 15.7 million people in the GeoNames count.

What US cities start with I?

The largest are Indianapolis, Indiana, Irvine, California, Irving, Texas, Independence, Missouri, Inglewood, California.

What capital cities start with I?

Islamabad (Pakistan).

Which country has the most big cities starting with I?

Nigeria, with 8 of the cities on this list.

Source: the GeoNames database: world cities with 300,000 or more people and US cities with 50,000 or more. Population figures are the latest GeoNames counts and can lag behind new census results.

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