Luzhou, formerly transliterated as Lu-chou or Luchow, is a prefecture-level city located in the southeast of Sichuan Province, China. It is also known as the "Liquor City". It was named Jiangyang until the Northern and Southern dynasties. Situated at the confluence of the Tuo River and the Yangtze River, Luzhou has been Sichuan province's largest port in both size and output since Chongqing's separation from Sichuan in 1997. As of the 2020 Chinese census, its population was 4,254,149.