Besides, the western concept of city does not apply well in the Chinese government system. In China, there are several "cities" that are directly administrated by the central government, i.e. some cities (including Beijing, Guangzhou, Shanghai etc.) are at the same level as provinces politically even though geographically within a provinces. It is kinda confusing for people who don't know the system. A direct administrated city is big enough to cover multiple prefectures and villeges, town and smaller cities. One may argue that it is not a city any more, but it is run as a city. So you have to be very clear on how you define a city in this article, by the government structure, or by the urbanization? The fishing villages on Lamma Island are not villages in the same sense that Greenwich Village is not a village within New York, NY.
See http://www.worldsat.ca/con_products/hk_bg.html and notice only a small part of Hong Kong is urbanized. The city is 95% green. The heavy urbanization on the upper left corner of the picture is outside Hong Kong in Shen Zhen.