With a total population of approximately 71.2 million, the Greater Bay Area includes nine cities of Guangdong province: Guangzhou, Shenzhen, Zhuhai, Foshan, Dongguan, Zhongshan, Jiangmen, Huizhou, and Zhaoqing as well as two special administrative regions Hong Kong and Macao. Surrounding the Pearl River Delta with a total area of 56,000 square kilometers, it is the largest and the richest economic region in South China.
