Pearl River Delta Economic Zone in the context of "Jiangmen"

The Pearl River Delta Metropolitan Region is the low-lying area surrounding the Pearl River estuary, where the Pearl River flows into the South China Sea. Referred to as the Guangdong–Hong Kong–Macao Greater Bay Area in official documents, the region is one of the most densely populated and urbanized regions in the world, and is considered a megacity by numerous scholars. It is currently the wealthiest region in Southern China and one of the wealthiest regions in China along with the Yangtze River Delta in Eastern China and Jingjinji in Northern China. Most of the region is part of the Pearl River Delta Economic Zone, which is a special economic zone of China.

The region is a megalopolis, and is at the southern end of a larger megalopolis running along the southern coast of China, which include metropolises such as Hong Kong, Shenzhen, Guangzhou, and Macao. The nine largest cities of the PRD had a combined population of 86 million in 2022; the PRD has become the largest urban area in the world in both size and population. The region's traditional language is Cantonese; in the late 20th century and the 21st century, due to the high inflow of migrant workers coming from other regions, Mandarin has gradually become a lingua franca.

Guangdong is a coastal province in South China, on the north shore of the South China Sea with Guangzhou as the capital. With a population of 127.06 million (as of 2023) across a total area of about 179,800 km (69,400 sq mi), Guangdong is China's most populous province and its 15th-largest by area, as well as the third-most populous country subdivision in the world.

Guangdong's economy is the largest of any provincial-level division in China, with a GDP of CN¥14.16 trillion (US$2.0 trillion in GDP nominal) in 2024, contributing approximately 10.5 percent of mainland China's economic output. It has a diversified economy, and was known as the starting point of ancient China's Maritime Silk Road. It is home to the production facilities and offices of a wide-ranging set of Chinese and foreign corporations. Guangdong has benefited from its proximity to the financial hub of Hong Kong, which it borders to the south. Guangdong also hosts the largest import and export fair in China, the Canton Fair, in Guangzhou. The Pearl River Delta Economic Zone, a Chinese megalopolis, is a core for high tech, manufacturing and international trade. In this zone are two of the four top Chinese cities and the top two Chinese prefecture-level cities by GDP: Guangzhou and Shenzhen, the first special economic zone in the country. These two are among China's most populous and important cities, and have become two of the world's most populous megacities and leading financial centres in the Asia–Pacific region.