Guangdong–Hong Kong–Macao Greater Bay Area
Geography and population centers
Geography and population centers
--------------------------------

The GBA is located in the southern coastal area of China (21◦320–24◦260N, 111◦200–115◦240E). Located in the very south part of China, the climate of the Greater Bay Area ranges from humid [subtropical](/wiki/Subtropics "Subtropics") to [tropical climate](/wiki/Tropical_climate "Tropical climate") in the far south. There are a few [mountain ranges](/wiki/Mountain_range "Mountain range") collectively called the [Nan Mountains](/wiki/Nan_Mountains "Nan Mountains") (Nan Ling) as well as a few inactive [volcanoes](/wiki/Volcanoes "Volcanoes") on [Leizhou Peninsula](/wiki/Leizhou_Peninsula "Leizhou Peninsula").

The Greater Bay Area consists of nine cities of Guangdong Province, which account for around 30% of the land mass of Guangdong Province, plus the Special Administrative Regions of Hong Kong and Macao. It is in the Pearl River Delta along the South China coast.

Mountain ranges and peninsulas shape the GBA. The province of Guangdong, for instance, possesses a coastline of  due to the multiplicity of islands, bays and peninsulas. This multiplicity of small islands results from the [Pearl River Delta](/wiki/Pearl_River_Delta "Pearl River Delta"), which is the convergent point of the East, North and West Rivers. It is therefore unsurprising that the network of bays and rivers has contributed to the archipelagic nature of many cities within the GBA. The cities of Guangzhou, Zhuhai, Hong Kong, and Macao for instance "each possess constituent and distinctly islanded territorial niches that are focused on particular industrial areas."

The entire area has temperate springs (March to May), hot and wet summers (June to August), clear and cool autumns (September to November), and mild, rainy winters (December to February). The annual average temperature of Guangdong Province is around 22\.3 °C, with the average temperature of 16–19 °C in January and 28–29 °C in July. However, the highest temperature in summer goes more than 35 °C and the lowest can be lower than 10 °C. Temperatures in Hong Kong and Macao are nearly the same, with the annual average temperature around 23 °C, a little higher due to their location more to the south and closer to the equator. GBA receives abundant amount of precipitation throughout the year.

GBA has a total population of approximately 86\.17 million people (5% of China's total population). The population is expected to reach 100 million people by 2030\.

| Cities | Urbanarea pop. | Districtarea pop. | Administrativearea pop. | Census date |
| --- | --- | --- | --- | --- |
| [Guangzhou](/wiki/Guangzhou "Guangzhou") | 10,641,408 | 14,904,400 | 14,904,400 | 2020\-11\-01 |
| [Shenzhen](/wiki/Shenzhen "Shenzhen") | 12,356,820 | 12,356,820 | 12,356,820 | 2020\-11\-01 |
| [Dongguan](/wiki/Dongguan "Dongguan") | 8,396,820 | 8,396,820 | 8,396,820 | 2019\-11\-01 |
| [Hong Kong](/wiki/Hong_Kong "Hong Kong") | 7,515,489 | 7,515,489 | 7,515,489 | 2020\-06\-30 |
| [Foshan](/wiki/Foshan "Foshan") | 7,348,581 | 7,348,581 | 9,498,863 | 2020\-11\-01 |
| [Zhongshan](/wiki/Zhongshan "Zhongshan") | 2,913,974 | 3,121,275 | 3,121,275 | 2020\-11\-01 |
| [Huizhou](/wiki/Huizhou "Huizhou") | 1,807,858 | 2,344,634 | 4,598,402 | 2010\-11\-01 |
| [Jiangmen](/wiki/Jiangmen "Jiangmen") | 1,480,023 | 1,822,614 | 4,450,703 | 2010\-11\-01 |
| [Zhuhai](/wiki/Zhuhai "Zhuhai") | 1,369,538 | 1,759,000 | 1,759,000 | 2020\-11\-01 |
| [Zhaoqing](/wiki/Zhaoqing "Zhaoqing") | 784,642 | 1,397,152 | 3,916,467 | 2010\-11\-01 |
| [Macau](/wiki/Macau "Macau") | 652,032 | 652,032 | 652,032 | 2020\-08\-12 |
| Total | 50,850,140 | 56,350,214 | 65,901,668 |  |


Which cities make up the Greater Bay Area?