Cangzhou is a prefecture-level city in China forming the southeastern extension of Hebei Province to the coast of the Bohai Sea between Tianjin and Shandong. At the 2020 census, Cangzhou's built-up (or metro) area made of Yunhe district, Xinhua district, and Cang County is largely conurbated with a population of 1,421,843 inhabitants, while the prefecture-level administrative unit in total has a population of 7,300,783.The resident population at the end of 2024 was 7,227,700, a decrease of 36,900 from the end of the previous year.It lies approximately 90 kilometres (56 mi) from the major port city of Tianjin, and 180 km (110 mi) from Beijing.