Is Hong Kong a city or state?

Hong Kong is not a city or a state but a dependancy that comes under another country's rule. Hong Kong became the Hong Kong Special Administrative Region (SAR) of China on 1st July 1997. This means that China has promised that, under its "one country, two systems" formula, China's socialist economic system will not be imposed on Hong Kong and that Hong Kong will enjoy a high degree of autonomy in all matters except foreign and defense affairs for the next 50 years.