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The World's 50 Largest Cities by Letter - O

Can you guess the 50 biggest urban areas that start with the letter O?
Source: OECD's Regions and Cities Atlas and citypopulation.de
For further sources and methodology, please see comments for this quiz
Quiz by Gassu
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Last updated: July 17, 2024
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First submittedJuly 17, 2024
Times taken615
Average score36.0%
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#
Population
Country
Urban Area
1
16,866,788
Japan
Osaka - Kyoto
2
3,078,205
Burkina Faso
Ouagadougou
3
2,642,322
United States
Orlando
4
1,609,805
Canada
Ottawa
5
1,449,751
Algeria
Oran
6
1,424,987
Japan
Okayama
7
1,422,223
Norway
Oslo
8
1,273,381
Ukraine
Odesa
9
1,265,758
United States
Oklahoma City
10
1,159,173
Russia
Omsk
11
1,150,000
Nigeria
Onitsha
12
979,150
Nigeria
Okene
13
961,354
United States
Omaha
14
898,099
Nigeria
Oshogbo
15
860,904
Japan
Otsu
16
840,723
Pakistan
Okara
17
759,997
Nigeria
Oyo
18
743,322
China
Ordos
19
725,918
Mexico
Oaxaca
20
721,484
Nigeria
Ondo
21
682,029
United States
Ogden
22
614,000
Morocco
Oujda
23
584,932
Russia
Orenburg
24
545,000
Nigeria
Owerri
25
539,358
Czech Republic
Ostrava
#
Population
Country
Urban Area
26
496,029
Kyrgyzstan
Osh
27
492,360
United Kingdom
Oxford
28
478,717
Japan
Oita
29
465,175
Mexico
Orizaba
30
464,356
Canada
Oshawa
31
442,846
Nigeria
Okitipupa
32
440,804
Nigeria
Ogbomosho
33
438,444
United States
Oxnard
34
422,968
Japan
Oyama - Tochigi
35
396,036
Nigeria
Oron
36
384,270
France
Orléans
37
372,737
Germany
Osnabrück
38
372,694
Kazakhstan
Öskemen
39
367,583
Philippines
Olongapo
40
361,158
Russia
Oryol
41
356,520
Kazakhstan
Oral
42
343,563
Bolivia
Oruro
43
305,982
Spain
Oviedo
44
302,357
India
Orai
45
301,816
Denmark
Odense
46
301,375
Russia
Orsk
47
298,460
Nigeria
Owo
48
289,625
Turkey
Osmaniye
49
275,622
United States
Olympia
50
269,100
Germany
Oldenburg
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