Because Fujian is mountainous and its population is scattered, it has not been able to form a large urban agglomeration. The combined population of the built-up areas of Fuzhou, Xiamen and Quanzhou, the three major central cities in Fujian, is less than 10% of the population of Fujian. In Japan, which is also mountainous, the population of more than 70% is concentrated in the three major urban areas of Tokyo, Osaka and Nagoya. According to internationally popular theories, the population primacy of the largest central city in the region should be no less than one-tenth of the regional population, that is, Fujian has a population of 34 million, and the urban population of Fuzhou, the only city with a population exceeding one million, should be no less than 340. million, but in fact, Fuzhou only has more than 1.5 million people. In Fujian, even for famous cities like Xiamen, the urban population of the island is less than that of an unknown prefecture-level or even county-level city in inland provinces such as Sichuan and Henan.

To say that the largest city in Fujian is Fuzhou.