Biggest Cities on the South China Sea

Can you name the largest urban areas that are situated on the coast of the South China Sea?
Includes a city on a river delta, as well as a city on a small neighbouring strait.
Includes cities whose urban area reaches the shore even if the city centre is further inland.
Source: citypopulation.de (September 2017)
Quiz by georgekotz
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Last updated: September 28, 2017
First submittedSeptember 28, 2017
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Population
City
48.6 mil
Guangzhou
24.1 mil
Manila
10.1 mil
Xiamen
9.05 mil
Taipei
8.30 mil
Ho Chi Minh City
Population
City
8.15 mil
Shantou
7.30 mil
Hong Kong
6.95 mil
Singapore
2.80 mil
Kaohsiung
1.85 mil
Haikou
+1
Level 79
Apr 11, 2020
Haiphong in Vietnam is on the coast and has more than 2 million people.
+1
Level 70
Apr 11, 2020
Strangely, Haiphong seems to be missing altogether from the source, although citypopulation.de supposedly lists all cities above 1 million. Given that, in other sources, Haikou is also listed as having a population above 2 million and being larger than Haiphong, I'd rather leave it as it is.