Jiangmen, formerly romanized in Cantonese as Kongmoon, is a prefecture-level city in Guangdong Province in southern China. Its 3 urban districts are now part of the Guangzhou–Shenzhen conurbation and the entire prefecture had a population of about 4.45 million in 2010.
Historically, Jiangmen Town was a community under the administration of nearby Xinhui County. Jiangmen, however, was forced to open to western trade in 1902. A legacy of this period is a historic waterfront district lined with western-style buildings. The city has an ongoing renewal project which is restoring many of these buildings. Jiangmen was proclaimed a city in 1951 and later became the prefectural seat for the "Four County" region including Taishan, Kaiping, Xinhui, Enping. (In Mainland China but not abroad, the area became known as the "Five Counties" when Heshan was added to Jiangmen's jurisdiction.)
In 2011, the city banned pet dogs in public after rabies killed 42 people over the preceding 3 years. The city reserved a 13-acre site to allow rural Chinese to adopt the 30,000 dogs, but public outcry led to a softer implementation where violators would be told to leave rather than have the dog confiscated.
The city is located on the lower reaches of the Xijiang or West River, in the west of the Pearl River Delta in the middle of southern Guangdong Province. It faces the South China Sea in the south and is 100 kilometres (62 mi) away from Guangzhou and Zhuhai by highway. Jiangmen city has an area of 9,260 square kilometres (3,580 sq mi), about one quarter the size of the Pearl River Delta.
The climate is subtropical with monsoonal influences. The annual average temperature is 21.8 °C (71.2 °F).