Jiangmen, alternately romanized in Cantonese as Kongmoon, is a prefecture-level city in Guangdong Province in southern China. It consists of three urban districts, Heshan, and the more rural Siyi, which is the ancestral homeland of approximately 4 million overseas Chinese. As of the 2020 census, the entire prefecture has a total population of about 4,798,090 inhabitants; its urban region has 2,657,062 inhabitants, which can also be considered part of the Guangzhou–Shenzhen metro conurbation with 65,565,622 inhabitants.