Luzhou (simplified Chinese: 泸州; traditional Chinese: 瀘州; pinyin: Lúzhōu; Sichuanese Pinyin: Nu2zou1; Luzhou dialect: [nu˨˩tsəu˥]), formerly transliterated as Lu-chou or Luchow, is a prefecture-level city located in the southeast of Sichuan Province, China. The city, named Jiangyang until the Southern and Northern Dynasties, is known as the "Liquor City" (酒城). Situated at the confluence of the Tuo River and the Yangtze River, Luzhou is not only an important port on the Yangtze river, but also the largest port in both size and output in Sichuan province since Chongqing was separated from Sichuan province in 1997. As of the 2020 Chinese census, its population was 4,254,149 inhabitants whom 1,241,273 lived in the built-up (or metro) area made of Jiangyang and Longmatan districts, as Naxi distr