Longmen is a town in Anxi County, which is part of the prefecture-level city of Quanzhou in southern Fujian province, People's Republic of China. Anxi County lies adjacent to and directly north of Xiamen city, and had a population of 1,003,599 at the time of the reference data.
As a town within Anxi County, Longmen shares in the county's administrative and geographic setting in southern Fujian. The county's position directly north of Xiamen places it within the broader coastal Fujian region centred on Quanzhou.
Detailed, well-established information about Longmen specifically is limited; beyond its location within Anxi County and the wider Quanzhou prefecture, no further verified particulars are available here.